Archive of Our Own ^beta

Chapter Text

Nezu was on his way to his office when he found the child. Staring down at the boy, who appeared to be on the verge of tears, Nezu stopped walking.

“Oh, dear.” He spoke, drawing the attention of the aforementioned child as he took a cautiously step closer, ears twitching in curiosity.

The child, who seemed to be around five, whipped his head around to face the principal, barely even catching a glance at the hero before running directly at him and wrapping his scarred arms around him.

Nezu blinked once, twice, a third time for luck before awkwardly patting the boy on the back. The first thing he noticed was that the child looked suspiciously alike to one of the examinees (Nezu'd only noticed this due to the fact that said examinee had more than a few similarities to a particularly short vigilante that'd been active for several years.)

“Midoriya Izuku, was it?” He mused, mainly to himself, but from the way the child's hands tightened on his suit, he assumed he was correct.

The real mystery was how the fuck the teenager had been turned into a preschooler in the span of half an hour.

Nezu paused his musing.

“Would you like to accompany me to my office? I have a few calls to make.” 

Midoriya nodded, and Nezu took note of the fact he hadn't spoken a single word.

The pair made their way to the principal's office, stopping on occasion to explain whatever had caught the child's interest. (There were many things, but Nezu's patience was infinite for Midoriya.) They eventually arrived, and the principal had to struggle to open the door, his dominant paw preoccupied by holding Midoriya’s hand.

Once they were inside, Nezu (with effort) gently put the child down on the chair in front of his desk, sitting opposite him.

“Well, Midoriya-Kun, would you mind explaining what happened to you?”

Midoriya stared blankly. 

“Would you prefer not to talk?” He questioned, ignoring the way his ears twitched in curiosity.

The child nodded, losing focus at an impressive speed and glancing around the room in a bored manner.

Nezu discreetly opened a draw in his desk, eyeing the stickers that a student had made of him three years ago.

Before he could even consider offering them to the boy, the door was flung open, Aizawa standing, panting heavily.

“One of the examinees got hit by another's quirk!” He gasped, and Nezu forced himself to ignore the increased speed of his heart at the honest to Kami jumpscare he was subjected to.

Midoriya, on the other hand, did no such thing. He didn't even hesitate before lunging at Aizawa and sinking his (surprisingly sharp) teeth into the man's forearm.

To give him credit, Aizawa held back his initial screech of surprise at the child hanging off of his arm and resorted to frantically shaking the aforementioned arm in a valiant effort to remove Midoriya. (It was unsuccessful)

“Oh, wow, he has a strong bite, doesn't he!” Nezu gushed, waddling over to admire his son's future student's attack.

Aizawa allowed himself to squeak in pain, eye twitching as Nezu attempted to pull the child off of him. 

Nezu tugged at the child's foot, tried to pry open his jaw, bribed him with cat stickers, but he wouldn't budge.

After several minutes, the principal surrendered, shrugging nonchalantly.

“Ah, Midoriya-Kun, would you like a hug?” He asked, his final bid to save his employee.

As if summoned by the deities themselves, Midoriya detached himself and wrapped his arms around Nezu's (already wrinkled) suit, tapping his feet in childlike excitement.

Aizawa made a pained expression, rubbing his arm in what Nezu thought was a dramatic manner.

“I'm guessing this is the examinee that was hit. Have you informed his parents yet?” Aizawa queried, wincing in pain.

Nezu blatantly ignored him.

“I'm so proud of you, Midoriya-Kun! You've already learnt about stranger danger!” Nezu exclaimed, pulling out several sheets of Nezu stickers and gifting them to the child, ruffling the boy's hair to show his pride.

“I think I need to go to Recovery Girl.” Aizawa stated.

Nezu had never even imagined the day Aizawa ‘I was only lightly shot’ Shouta would admit to needing medical assistance, dismissing the mere thought years ago.

He looked at the bite mark left by his new ward.

“Huh. I suppose I should get him some snacks as a reward. Anyway, if anyone asks after me, I'm busy.” And with that, Nezu pushed his employee out and slammed the door behind him.

Lifting the preschooler into the air, Nezu smiled, bearing his teeth.

“This is going to be fun!”

(Behind Nezu's back, Aizawa had attempted to notify Midoriya’s mother of the situation, but the phone number given was no longer active, and a haste search of the child's profile showed no living family members. He nearly cried at this, the mere knowledge that every time he entered Nezu's office the child would be staring at him, so hungrily. He shuddered. )

Nezu smiled down at his son, gently petting his hair as he attempted to eat the student's homework in front of him, only unable to due to his lack of height. 

He picked up one of the sheets, checking the name before handing it to his child, watching happily as it was decorated with small teeth marks and crumpled beyond recognition.

“I suppose I won't be needing a shredder anymore.” He mused.

It had been more than a month since he had first encountered his son, but it felt as if he'd known him his entire life.

The principal grinned at the framed adoption papers displayed proudly on his desk before glancing at the rather confusing child leash that Aizawa had forced a first year to deliver. Nezu supposed it was to make sure his child wouldn't run off.

“Hey, Izuku-Kun, what do you think of this?” He lifted up the item, watching his ward's reaction carefully. 

Midoriya nodded, assisting his point with a complimentary thumbs up.

Nezu smiled before calling Maijima.

“Hello? Yes, please report to my office shortly. It's an emergency… Yes, it's related to my son, why?”

(When Maijima did arrive, it was safely behind a suit of padded cloth built to be able to survive explosions.)

Chapter Text

Nezu readjusted his grip on Midoriya’s leash, skillfully ignoring the pained look Aizawa sent him.

His child was frantically attempting to escape his confines, glaring at Aizawa as if he'd spat in his food and called his mother a whore. He made vague biting motions, grinning wildly as the hero flinched back.

Nezu gently patted his head, “Aw, he's so excited to see you!” He exclaimed, mainly to see his employee's withering glare. 

Behind the teacher, twenty students piled out of the mini van that had been tasked with bringing them to the USJ.

“Ah, welcome, class 1A! I've decided to join you for this exercise!” In reality, Nezu was only there because Midoriya had expressed interest in heroics as a general.

One of the students, Bakugou, squinted at Midoriya briefly, and promptly shrugged and ignored the boy, a large contrast to the others, who's eyes routinely flicked over to the violent perfectly normal child.

The doors to the USJ opened as if remotely activated (Mainly because they were), and the group made their way inside.

Thirteen stood inside, their notecards safely hidden inside their suit. Midoriya, although lacking in age, was easily able to tell that the hero had spent quite a while practising their speech.

Despite this, a small crowd formed around Nezu and his child, looking at Thirteen, but certainly not paying their full attention towards them.

Midoriya, Nezu thought, was behaving rather well; he was barely even trying to attack anyone. 

Of course, that's when it all had to go wrong. A purple mist began to form, a hand appearing through it. 

Nezu felt his paws tighten on Midoriya’s leash, but despite that the boy still managed to break free, waddling at a concerningly fast pace. 

Before anyone else was even able to react to the situation, Midoriya had completed his journey to the newly revealed plethora of villains.

Nezu felt his heart skip a beat, his anxiety worsening as Midoriya walked (to the best of his ability, being five and all) over to what appeared to be the leader of the criminals. 

Midoriya sat by the villain until he picked up the child, careful to keep both his pinkies well away from him, and glanced between the heroics students and the boy.

“Is this one of yours?” He called. 

Unfortunately for him, Midoriya did not appreciate the noise and promptly sunk his little (and surprisingly sharp) teeth deep into his upper arm.

The villain froze, his face slowly morphing from ‘mildly confused’ to ‘Holy fuck I'm in agony Kami please kill me now’.

Nezu raised his thumb. “I'm so proud of you, Izuku-Kun!”

The misty man looked at his ward.

“Shigaraki Tomura?” 

The freshly dubbed Shigaraki looked at him, on the verge of tears, and meekly spoke.

“I want to go home now.”

Kurogiri glanced at the child, who was still attached to Shigaraki and lightly tugged on his leg. The child did not let go.

He tugged slightly harder, but Midoriya only sunk his teeth deeper into Shigaraki.

He'd stopped holding on to the boy a while ago, and Midoriya was hanging on by his teeth and rage alone.

A single tear fell from his eye and Kurogiri made a regrettable decision.

“We can remove him once we retreat.” Kurogiri consoled, opening a warp gate in order to make their escape.

Of course, this escape did not include the large number of villains they'd brought along with them and the last thing Nezu saw through the swarm of criminals was his son dangling, unsupported, from a NEET's arm before disappearing into a swirling purple mass.

He blinked once, twice, a third time.

“Oh.” His voice cracked. “Oh, no.”

The travel from the USJ to fuck knows where was somehow not enough for Midoriya to release Shigaraki. 

Kurogiri began to mutter under his breath. “What do children like?” 

Over the course of the next fifteen minutes, Kurogiri offered him all sorts of items, like a can of soup, vitamin gummies, and even Shigaraki's series of games about a silly bear in a hat called Freddy, but no. Nothing was good enough for the small green child.

“I think we might have to amputate.” Kurogiri decided, turning around to retrieve his phone in order to call their doctor.

“What?!” Shigaraki screeched, pausing his attempts at shaking off the child to look his caretaker in the face.

“Come on kid, let go!” He hissed, poking Midoriya in the face.

“I'll trade you my shiny Cottonee in Pokemon go?” He tried, and, to his surprise, Midoriya immediately released him, dropping to the floor and landing on his face. 

Resiliently, he crawled back to his feet and, out of seemingly nowhere, pulled out a phone.

“Do you not talk or something?” Shigaraki questioned, bringing out his own phone in order to fulfil his promise. 

Midoriya shook his head as he waited for the app to load.

Shigaraki shrugged, “Fair enough.”

It was at that moment that Kurogiri returned, and he flinched back at the sight of Shigaraki no longer being bitten.

“Oh, it seems you've fixed the issue.” He spoke, subtly (it was far from subtle, but Shigaraki wasn't going to mention that.) Indicating for the doctor to fuck off.

“Yeah, I just gotta give him this shiny pokemon and we're all good.”

Kurogiri looked down at the child.

“Hello there.”

With no warning, the child ran at him, and, in fear of his life, Kurogiri squealed in panic.

When all Midoriya did was hug him, he hesitantly opened his eyes.

“Shigaraki Tomura, how did you remove the child?” His voice was shaking, and Shigaraki could see the beginnings of tears in his misty yellow eyes.

“I offered him something he couldn't refuse.” The teenager replied eerily.

“Hello, child,” He began, “Would you like a quirk?”

Midoriya stared up at the man in front of him and, without hesitation, flipped him off.

Kurogiri gaped at the blatant disrespect and hastily covered up the gesture.

“Hello, Sensei. We have a slight.. issue. There were several complications with the USJ plan.”

The man leaned forwards in his wheelchair.

“Oh?”

“There was a child.”

“I thought you were aware of the class you were interrupting.”

“No, like. A child.” Kurogiri emphasised.

“And why, might I ask, was that an issue?”

Kurogiri glanced down to the child that was still hugging him, limpetted on to his leg.

“It bit Shigaraki Tomura. We had to retreat in order to remove the child.”

All For One paused.

“You had to retreat. Because of a child?!” He raised his voice.

Midoriya, who was still rather shaky about the whole kidnapping thing, responded on instinct alone (aided by the horrific floral print wallpaper that ruined the room completely) and lunged at the villain, sinking his teeth into the man's calf, deep enough to draw blood. 

The man shrieked, and attempted to kick him off, but his limited mobility made that rather difficult.

Midoriya held on tight and Kurogiri watched in dred as All For One was mauled by the boy.

The misty man spun around as he heard a gasp from behind him, only to come face to face with Shigaraki. (Or rather, face to fuck all, considering the fact that Shigaraki was much shorter than him) 

“Midoriya bit me because I was gonna hurt other people. If he's biting Sensei..” The teenager trailed off. 

Before he could finish his revelation, the door was kicked in by a rather angry looking rodent.

“Give me back my son, you motherfuckers!” He hissed, expression changing completely as the situation before him unfolded. 

“I'll turn myself in, just get this thing off of me!” All For One screeched.

The rather large number of professional heroes behind Nezu glanced at each other before a brave few stepped forwards and apprehended the villain.

Shigaraki, who was feeling rather courageous, made eye contact with Midoriya.

“Hey kid, you still interested in that shiny Cottonee?” 

In a way not dissimilar to that of a fork being dragged to a magnet, Midoriya waddled over to Shigaraki and held onto one of his hands tightly, careful to avoid touching all five fingers.

Nezu gave him a suspicious look before offering his paw to his son, ears twitching as he accepted it.

“So, I suppose you've had some time to think about what you've done.” Nezu announced, eyeing Shigaraki out of the corners of his eyes.

Shigaraki avoided eye contact like a cat avoiding all parts of a human that wouldn't hurt if they stepped on it, and nodded shamefully.

“Alright then, I suppose I can overlook that whole ‘kidnapping my son.’” 

Shigaraki sighed in relief, unable to hear the ‘For now’ the principal added on afterwards.

(Of course Nezu wasn't going to make Shigaraki's life too hard. Maybe.)

(In the background All For One is dragged away in tears, “I'll do anything, just keep that child away from me!”)

Chapter Text

Midoriya was lost. Nezu had, in a rather on brand manner, found a tracker so a repeat of the USJ was avoided, but Midoriya managed to shake it off several hours ago and so his current predicament was created.

He waddled forwards, staring at the sides of the vent he was residing within.

Midoriya frowned, and crawled further into it. Thoroughly enjoying the echoing metallic sound created whenever he moved, he smiled silently, closing his eyes for a moment, just a moment, but a second later he was tumbling through the air, landing face first on a carpeted floor. 

He was, thankfully, unharmed, and Midoriya was pretty sure it was due to the fact that Nezu had hand sewn (it had taken a while) his outfit with protection in mind. (He wouldn't be surprised if the mouse themed shirt was bulletproof, in all honesty.)

He stumbled to his feet and looked around. 

Midoriya did not recognise his surroundings, and so, promptly burst into tears.

A minute or two later, a blonde student returned from Kami knows where, and stopped in front of the student.

“Well, hello there.” He began.

Midoriya frowned at the student, a pout forming across his features. 

The student poked his face in, what Midoriya considered, a rather rude manner.

Of course, he responded in an adequate manner, and bit the finger.

The boy froze, face slowly morphing into an expression one might pull after hearing their cat meow in another room, shortly followed by the sound of breaking glass.

A lone tear fell from his eye as he forced himself to restrain the instinctual string of profanities that threatened to spill out. This, of course, was only due to the fact that there was a child right in front of him. 

(Coincidentally, the aforementioned child was the reason for the aforementioned hypothetical profanities.)

He stood up shakily, finger still safely between the teeth of Midoriya, and slowly, whilst dragging the child across the floor, made his way to his classroom.

With one hand and impressive strength, the blond opened the door, startling Nemuri, who stared wordlessly as he trudged to his desk, child still being dragged across the floor.

“Thank you for joining us, Monoma-San.” She began, clearing her throat.

Monoma pulled out his book, ignoring the tremor in his hands, and began to take notes.

After less than half a minute, Midoriya, with a determined glint in his eyes, slapped the pen out of his hand. It skittered along the carpeted floor, slowing to a halt by Nemuri’s foot. She pointedly ignored it.

After a moment of hesitance, he reached into his bag and retrieved a second pen. 

He made it halfway down the page before it was sent flying into the wall at the front of the classroom. He stared blankly at the wall before looking down at the child, who smiled brightly and waved. Monoma smiled back, but there was no light behind his eyes, and the tears welling up in the corner of his vision began their escape down his face.

Monoma searched his bag for a third pen, but his efforts were rewarded with nothing but disappointment. He turned his pleading gaze onto Kendo who, after a quiet pause, hesitantly handed him a cheap biro.

He looked back up at the white board, only to find that all the notes he was supposed to take had been erased. Midoriya attempted to pat him on the back, but he was unable to see much, considering the fact he was still biting the boy, and ended up slapping him in the face.

With that, Monoma promptly burst into tears. It was all Midoriya needed to release the student, and began to waddle off.

“I wonder where he's going.” Kendo mused.

“Probably to find his next victim.” Nemuri muttered under her breath.

Monoma was unable to speak due to the rather loud and uncontrollable sobbing.

Meanwhile, Midoriya, with the determination of a goose that had caught sight of unattended children, stumbled over to Recovery Girl's office. He did not know how to get there, nor where he was, but his lack of knowledge did nothing to dent his drive.

By some miracle imposed by the deities, he made it to his destination.

He rammed the door with all his five year old might, and it opened slightly.

Once he forced his way into the room, he approached Recovery Girl and tugged on her coat.

She turned around, "Oh, Midoriya-Kun, Nezu was wondering what you were up to! What can I help you with?" 

To an untrained eye, it may seem like the heroine was calm, collected even, but in reality she was struggling against her fight or flight reflexes, mainly because it would not look too good if she decked a child seemingly unprovoked.

Midoriya began his best attempt at miming out the situation, and Recovery Girl nodded along.

“Well then, I best be off to make sure Monoma-San is alright. I'll leave you with Shinsou-San as company.”

She looked at the purple haired student in the same way one might look at a mouse that had just been cornered by a cat; a mix of pity, relief and disconnected acceptance crossed over her face before she rushed out the room and slammed the door.

Shinsou gulped.

Midoriya slowly turned his head towards the boy.

“Uh, hello?” He squeaked, trying to keep the dregs of his dignity as he slowly backed away from the child.

Midoriya crawled up the side of the bed that Shinsou was residing on, and took a wobbly step towards him.

As if on cue, the student's phone received a notification, and the sound of a cat purring broke the layer of silence that had been growing.

Midoriya smiled widely, showing off his teeth.

Shinsou cautiously pulled out his phone, scrolling until he found what he was searching for.

The selected video lagged for a moment before a video of a cat running straight into a wall played. Midoriya paused for a second before somehow smiling even wider.

Shinsou attempted to keep a straight face, but failed misterably as a grin formed, the result of osmosisised happiness emitting from the boy. 

When Nezu finally appeared at the door of the infirmary, he found Midoriya tightly hugging Shinsou.

Once he’d caught his breath he spoke.

“Midoriya-Kun! I believe it’s time for you to pick out your friday presents!”

He turned to the student.

“You’re in the hero course now.” He pointedly ignored the shocked expression of the teenager and returned his attention to his son.

“Anyway, come on Midoriya!”

(Several minutes later Recovery Girl poked her head around the door. “Is he gone yet?” She whispered. When Shinsou nodded, she brushed down her uniform and stepped in like nothing happened.)

Chapter Text

Midoriya readjusted his grip on Nezu's paw as the train rocked slightly. He shamelessly looked around the carriage at anything and everything, eyes wide with childlike wonder. The pair were on a rather important mission, to retrieve as many pieces of hero merchandise as physically possible. 

Nezu was loaded with a near limitless card and the inability to feel regret when it came to purchasing things for his son. This, of course, was why Nezu's office had absolutely no spare room on the walls and temporarily discarded action figures could be found littered in the school's vents.

The train creaked at a concerning volume, and Nezu had little time to react before it was knocked off of the tracks. The pair were thrown apart, and within seconds Nezu had lost sight of his child.

He coughed into the arm of his suit, stumbling to his feet. Out of the corner of his eye, he thought he saw a flash of green, but by the time he fully looked over, it was gone.

His phone, on which he had the location of Midoriya’s tracker, lay uselessly in the debris, screen cracked beyond repair.

Midoriya glanced down at his knees, narrowing his eyes at the stained material. If anyone other than Nezu were his parent, the trousers would have torn at the knee, however, that was not the case.

He stumbled into a sitting position and gave his best effort at brushing off the dust. The herculean task took him more than a while to complete, but once he was vaguely happy with the results, he stood again.

He looked left, then right. His father was gone.

Midoriya waddled forwards, determined to find a hero who could find him.

After roughly half an hour, he came to the conclusion that most of the professional heroes were rather occupied. There were strange creatures that seemed to be (badly) painted to look threatening, and reminded Midoriya, for a reason unknown to him, of floral print wallpaper and the rude man he'd bitten a while ago.

He shrugged at the chaos surrounding him and slowly, as most children do, wandered off to find something interesting enough to keep his attention. In doing so, he completely missed a certain principal beat the everloving shit out of the mystery creature, fueled by parental instinct and a bit too much tea.

Midoriya made his way along a road, skillfully tottling around the seemingly random splatters of flame that were scattered around the city.

Midoriya didn't know that fire features existed, but considering the fact that water features did, it sort of made sense. He stopped for a moment, merely to catch his breath, and, after turning left, blinked owlishly.

A hero was sitting against an alleyway wall, arm wrapped around his torso and in a position that reminded Midoriya of the stuffed toy of Nezu he'd been gifted after commentating on the sports festival.

(He, of course, had not said a word, instead opting to butcher several videos to make a soundboard of slightly unintelligible words.)

He stumbled towards him, short legs struggling with the sheer amount of energy he had stored up. There was a loud sound of metal on metal, and Midoriya found his interest piqued.

He entered the alleyway and stared up at a man whose eyes were barely visible through the white fabric covering the upper part of his face. In front of the child was another child, albeit this one was roughly ten years older, laying on the floor in a small puddle of blood.

Midoriya looked between the downed student and the man, squinting in suspicion.

The man narrowed his eyes.

“A.. child?” He questioned and, were they not covered, Midoriya would have seen him raise an eyebrow.

Midoriya waved, seemingly unaware of the danger he was currently in.

He turned to look at the student in front of him. He nudged him with his foot, and he groaned in response.

He knelt down and took off his backpack that Nezu convinced him to carry around at all times. The child pulled out the first aid kit and opened it. 

It wasn't easy for him to tell where the teenager was injured, so he resorted to poking the boy until he found and injury and haphazardly slapping on the plasters that were decorated with the faces of animatronics from a pre-quirk game on every place he suspected he was harmed.

The man stood still, watching. 

Once Midoriya was done, he brushed off his hands like he'd seen Nezu do and made eye contact with the man and approached him, holding the plasters in an almost threatening manner.

The man, with visible reluctance, stayed still as Midoriya tried his best to reach his face, eventually resorting to using the adult's outfit to climb up until he was within plastering distance.

He came close to falling, but he was caught before he was able to, gently being set down.

“Step away from him!” 

Midoriya turned around, eyes landing on the teenager who was no longer on the floor.

“Midoriya-San, please step towards me.” He spoke again, carefully pushing the child behind himself as he faced the man.

“Are you hurt at all?” He questioned, and it took Midoriya a moment to recognise the student who'd made it to fifth place in the sports festival.

He shook his head, confusion evident on his face.

Iida somehow sensed it, a rather impressive feat considering the fact he hadn't taken his eyes off of the man in front of them.

“That's the Hero Killer, Stain.” Iida stated. 

Midoriya poked his head out from behind the student, a look of betrayal plastered on his face.

The murderer looked almost guilty, readjusting his grip on the blade in his hand, drawing Midoriya’s attention to it.

In an action that could only be described as fucking terrifying, Midoriya lunged.

Instinctively, the hero killer raised the blade, unable to suppress his scream of unadulterated fear as the child bit straight through it.

The alleyway was near silent, save for the sound of metal clattering on the floor.

With little to no hesitation, Midoriya struck again, but the hero killer dodged.

It turned out, he was rather shit at dodging, as Midoriya managed to latch on to the back of his ankle, through his boots, and thoroughly introduced his teeth to the man's talus.

Stain hissed in agony, lifting his leg up in order to keep the child away from his other ankle.

“Midoriya-San!” Iida's voice was unmistakably worried in tone.

Midoriya, who was dangling from the hero killer's lower leg, shot him a thumbs up.

“He says you betrayed his trust.” Iida translated, hands hovering just in case he had to catch the boy if gravity got the best of him. (He doubted it, having seen the scar on Aizawa's arm, but better safe than sorry.)

“He’ll only forgive you if you turn yourself in.” 

Stain looked between the child and the student.

“How the fu-” He cut himself off, eyes flashing towards the five year old. “How the heck do you know what he's thinking?” He hissed, confused and, honestly, concerned.

(The hero killer shuffled closer to the wall so he could rest his leg there, the weight of the child testing his muscles.)

Iida readjusted his glasses, narrowing his eyes as he took in the murderer's distracted state.

“It's called,” He began, slowly bringing one leg back.

He struck, kicking the criminal in the side of the leg whilst somehow simultaneously catching Midoriya before he even had the chance to fall.

“Autism to autism communication!” Iida finished, holding up Midoriya as if the boy were a particularly large fish and the teenager a middle aged man on a dating website.

Midoriya’s teeth were still firmly located on the hero killer's ankle.

“Midoriya-San, if you drop him we can spend a weekend doing arts and crafts together.” He bribed, resisting the urge to turn his head as he heard movement at the opening of the alleyway.

Midoriya raised an eyebrow in a rather familiar way. (Iida resisted the instinctual urge to throw the child at the reminder of his homeroom teacher.)

“Yes, we can draw Nezu-Sensei.”

The boy joyfully opened his mouth, and the criminal's leg dropped against the floor like the rest of him with a soft thud.

(Thankfully, it was still attached. Iida would have hated for Midoriya to feel any kind of guilt at non-medically amputating a limb by accident.)

Midoriya crawled up Iida's arm (He felt his heart skip a beat in pure dread.) And, rather unsuccessfully, wrapped his arms around the teenager.

It was unsuccessful in the sense that Iida was wearing armour, and Midoriya’s arms were much too short to fully hug the student.

(Iida gave him an A+ for effort, though)

Finally, he turned around, nearly flinching back as he came face to nothing with Nezu.

He looked down, barely resisting the overpowering urge to gulp.

“Hello, Iida-Kun! I must say, I'm rather proud of you for being able to take down the hero killer and prevent my son from being injured.” 

Iida thought his voice was a little bit too cheerful for someone who looked as if he'd narrowly managed to escape the depths of Tarturus whilst being chased by a child with an improvised flamethrower, but he was in no place to judge.

“Well, Midoriya-San was the real hero.” He admitted, gently placing the boy down, only letting go once he was sure he wouldn't fall flat on his face.

Nezu, in a rather on-brand manner, stuck a small gold star sticker on his face.

“I believe this is when we take you both to the hospital, no?” 

Iida allowed himself to be dragged out of the alleyway by the teacher, offering a single glance back at the unconscious villain that was now being restrained by a small group of heroes.

Nezu quietly pushed open the door to the hospital room, silently stepping forwards in a way not too dissimilar to that of a notorious species of rodent.

“This one is called the patella, it's difficult to bite, but I would highly recommend aiming for it in other attacks. Another good place to go for is the shin, which is here.”

Nezu's ears twitched as he listened to his student explain the best areas to bite whilst his son koala-d onto his upper arm, listening intently.

He smiled softly, carefully taking a photograph so he could send it to Aizawa later. He wondered how his employee would react to knowing his ‘best behaved’ student was aiding his son's hobby.

(Aizawa spent three hours under his desk crying after Iida smiled in a way that revealed his teeth, arm aching in phantom pain.)

Chapter Text

Shigaraki gripped the child leash tighter in his gloved hand as Midoriya strained against it as if his life depended on it. There was no way in hell that he'd allow himself to lose the boy after only being out of Nezu's sight for roughly five minutes.

However, the child seemed to have a rather frustrating habit that involved trying to tear the leash of his harness out of the teenager's hand whilst simultaneously latching on to his leg like a determined cat. It was, with the lack of better words, fucking difficult.

On more than one occasion Shigaraki had nearly been yanked off of his feet by the child, and considering the fact that Midoriya wasn't even a metre tall and would be easily bested in battle by a freshly hatched goose, he was surprisingly strong when it came to things that intrigued him.

Shigaraki smiled slightly, allowing himself a moment of weakness as the slow trickle of passers-by parted like magnets of the same pole as the excitable boy tugged at the only thing between Shigaraki getting paid and Shigaraki getting a room covered in All Might merchandise.

When he wasn't attempting to introduce his teeth to his victim's bones, Midoriya was decent company.

“Kid,” Shigaraki began, gently pulling back on the leash to draw his attention, “What'd you think of those videos I sent you?”

Midoriya, without adjusting his expression, offered the teenager a certain thumbs up.

“Oh, neat. Which one was your favourite?” He questioned, shifting his arms so the child could gain a better grip on his calf as he limpetted on like a determined kitten to freshly bought curtains.

Midoriya nonchalantly flipped him off.

“The first one?” He clarified, humming in understanding after the child nodded.

“Yeah, there's a reason it was so popular when it came out. I'm guessing your favourite character is Toriel, right? The goat in the beginning.”

Midoriya frantically nodded, and Shigaraki considered it a miracle he didn't fall off of his leg at the extreme movement.

“She reminds you of Nezu, huh?” Midoriya blinked slowly, which Shigaraki interpreted as a ‘yes’.

“She reminds me of someone too.” He mused, mainly to himself.

With luck that was rather on brand for Shigaraki, he failed to notice the sudden shift in Midoriya’s attention and, with his guard down, was unable to react hastily enough when the child took interest in a cat that had appeared in the near distance.

This, unfortunately, led to the boy releasing Shigaraki's leg and opting to instead locate and pet the feline.

Shigaraki, the poor teenager, did not have the best reflexes. Far from it, in truth. It took him a rather concerning amount of time to realise that the harness that he'd been holding had long since disappeared.

“Ah.” He stated, staring down at his empty palms. “Fuck.”

Midoriya, on the other hand, was having the time of his life. The cat he'd found, a tuxedo that was more fluff than anything else, had led him towards even more felines. His eyes widened comically as a large pile of cats came into view.

With absolutely no regard for his personal safety, Midoriya waddled towards them (skillfully ignoring the way his harness slipped off), careful to avoid startling the resting animals.

As he got closer to every cat lover's dream, he vaguely took notice of the pair of shoes sticking out of the moggie mountain, ignoring them in favour of the furry alarm clocks that were begging to be pet.

Soon enough, Midoriya had a small collection of catlings climbing over him. This, in turn, resulted in the form of a man being barely visible underneath the remaining felines.

Curiosity piqued, (only just enough to momentarily distract him from the cats) Midoriya nudged the figure with his foot, taking a single step back when he stirred.

He blinked once, twice, a third time for luck and nudged him again. 

The stranger groaned, slowly rising from his comfortable position of laying on the ground to see what had awoken him.

He was greeted to a horror game worthy jumpscare of a child's face right in front of his own. If questioned on whether he screamed or not, Dabi would have to be held at knifepoint to admit that he had. He flinched back like a startled stoat and backed himself against the wall of the alleyway. 

“What the fuck?” He screeched, barely taking note of the plethora of cats scurrying away with undignified 'meow's as he narrowly avoided burning the child alive, on accident, of course.

The child blinked innocently as several felines began to scale up his small figure as if impersonating a determined and challenged-on-the-y-axis rock climber.

“What are you doing here?” He questioned, looking around for the boy's parent. 

In lieu of a response the child held up a cat with a tuxedo pattern and indicated towards the entrance of the alleyway.

“What? Did you get lost or something?” He picked up the child and held him up like a disobedient catling.

The boy offered him a thumbs up and promptly latched onto his arm.

Dabi forced the instinctual grimace off of his face and shook his arm slightly, though the motion grew more rapid as the child refused to let go.

“Who do you belong to?!” He asked, voice rising in pitch as panic began to set in.

The boy pointed towards the open street for a second time and, in borderline desperation, Dabi exited the alleyway.

As if summoned by the deity of ‘Concerningly violent children’, a rather panicked teenager practically tackled him, wrapping the boy in a tight hug.

“Oh thank fuck!” He sobbed, and, for a reason unknown to Dabi, pulled out his phone and opened Pokemon Go.

“Midoriya, do you want another shiny?”

The freshly dubbed Midoriya nodded shyly, but refused to release Dabi.

“Are you his caretaker?” Dabi asked, gently separating the pair.

“Thankfully not, but I'm supposed to look after him. Why, what's it to you?” The teenager raised an eyebrow, lifting himself up onto the tip of his toes in order to appear taller.

“I'm not too keen on dumping a kid on the first dude to claim to be taking care of him. No offence, of course.” He stated, in a tone that implied a large amount of offence.

“Wh- We're literally ultra friends in Pokemon Go, check his phone if you don't believe me!”

Dabi looked at the child, “You have a phone? Why the fuck didn't you just call this dude?”

“This dude? My name's Shigaraki, please, feel free to use it.” 

The criminal rolled his eyes, “Why didn't you call Shigaraki?”

Midoriya blinked widely, readjusting his grip on the man's arm.

“He can't call me ‘cause he doesn't talk and he can't figure out messaging.” Shigaraki interjected, flexing his hands subconsciously.

“How conven-” 

He was cut off as a building several dozen metres away rudely exploded, showering the surrounding civilians in an unhealthy dose of rubble and probably asbestos.

It took less than a second for Shigaraki to instinctively shield Midoriya and, by extension, Dabi.

The cloud of dust cleared to reveal a battered Endeavour (unfortunately, not the fish kind of battered) attempting to pry himself out of the middle of the aforementioned exploding building.

The flames that consistently concerned anyone with common sense flickered violently before they extinguished.

Midoriya glanced up at his current mode of transport and frowned at the pained look on his face, following his eyes towards the number two ranked hero.

He clenched his jaw in childish determination and lunged. Midoriya flew through the air with the grace of a dropped pack of cards and, teeth first, collided with the flameless man.

Endeavour shrieked, lifting up his arm to reveal Midoriya's teeth deeply embedded in his elbow, digging his nails into the arm on either side.

He raised a fist, pausing at the lack of fire that he was sure he'd attempted to summon. Endeavour’s eyes flicked between the growing crowd and the five year old currently trying to forcibly remove his humeroulnar joint.

The hero switched up, and instead fruitlessly tugged at the child's ankles to remove him. It was unsuccessful.

He stood still for an awkward moment before reluctantly attempting to lift chunks of concrete off of as many civilians as possible.

Endeavour managed to rescue the vast majority of the people involved in the incident, and by the time he was finished the boy had drifted off to sleep.

This, unfortunately, did not mean he was free to go, as it turned out that the child did not let the lack of consciousness affect the intensity of his bite.

Shigaraki, who had been preoccupied disposing of Dabi's unconscious body (He chucked it in the nearest dumpster and stole several hundred yen in the process), finally speed walked forwards and, after explaining his relation to Midoriya, was allowed to resolve the incident.

“Midoriya, I've got a sheet of Nezu stickers,” The boy opened one eye, “But it's only for kids who aren't currently biting people.”

With the reluctance of a man deciding to leave his cat alone in a room of fragile objects, Midoriya un-clenched his jaw, and dropped into Shigaraki's waiting arms.

“Oh, thank fuck.” The ex-criminal hissed, relief washing over his face before he remembered that most incidents like the whole ‘exploding building incident’ tended to be accompanied by the press.

He stared directly into the lens of the nearest camera he'd just noticed and swore loudly.

(Nezu had covered everything Shigaraki owned in All Might themed wrapping paper and allowed Midoriya to have his bi-weekly arts and crafts session with Iida in his room, resulting in glitter merging with everything it came in contact with.)

Chapter Text

Nezu glanced down at Midoriya, a fond smile gracing his face. The child took a moment to realise his parent was looking at him, but once he did the boy grinned widely, small fragments of red glitter falling from his hair into his face.

The teacher, somehow, had almost forgotten about the plethora of glitter that was floating about in the sea that was Midoriya's hair. He'd somehow managed to drench himself in the stuff whilst creating his third All Might shrine.

Nezu recalled the shrieking he'd heard from Iida's room and gripped onto his son's hand a little tighter.

“What colour do you think we should get?” He questioned, breaking the fragile silence that technically couldn't be called ‘silence’ due to Midoriya's near constant purr as he waddled along the pavement.

Midoriya stuck out his tongue in concentration as he lifted up his first, third and fifth fingers on his free hand.

“Yellow, red and blue? My, Izuku, would you prefer a rainbow set instead?” Nezu already planned to buy more than a substantial amount of the shiny stuff, but he was more than willing to exceed his previous estimate.

The child pondered for a moment, eventually nodding in agreement once he'd made his decision.

Unadulterated pride swept through Nezu as he allowed himself to take notice of just how amazing both parenthood and his son were. 

Out of seemingly nowhere, Midoriya meerkatted, snapping to attention in a manner not too dissimilar to that of a feline after hearing someone say ‘pspsps’.

No time was given for Nezu to properly react before Midoriya pulled him into a significantly less crowded street.

‘Less crowded’ meaning ‘completely fucking deserted’.

Nezu turned to gently redirect Midoriya back to their original path, but found himself unable to move.

Frozen in place he was unable to outwardly react as his son chased after a girl with long hair, unaware of the danger behind him. 

The principal was able to watch as his son wrapped his arms around the girl, hugging her tightly as they reached a dead end. 

The teacher was able to watch as his son took notice of the looming figure that had paralysed him.

The hero was able to watch as his son place himself between the criminal and the girl as he advanced, making eye contact with Midoriya as his panicked eyes filled with tears.

The father was able to watch as his son was stolen away. He was able to watch helplessly, hopelessly, but unable to act.

Midoriya resisted the primal urge to flip off his captors. Not only were they fucking rude, but his new friend didn't like them, which was more than reason enough to deserve the profane action.

If there was one thing he was thankful for, it was that he had been allowed to stay in the same room as his aforementioned new friend. Although, perhaps ‘allowed’ wasn't the correct word. The villains had been unable to separate the pair and gave up shortly after Midoriya began snapping at them.

In his opinion, if they were rude enough to kidnap him the least they could do was stay still long enough for him to bite. Honestly, it was like nobody taught these people manners. 

Midoriya tutted, returning his attention to plating Eri's hair.

“Midoriya-San, why are you doing that?” She asked after several minutes in a tone that reminded the boy of a microwave with a very quiet timer in need of a battery replacement.

It took the child a second to figure out how to reply. Thankfully, he kept a wide range of pens in his pocket  for situations similar to the current one and, by some miracle, Eri was able to read.

Out of the dozen or so pens, Midoriya selected a rather lovely red whiteboard marker and walked over to the wall. (His plait was left somewhat intact) 

Uncapping the pen, Midoriya wrote out ‘Because I fucking can” in the largest letters he was physically able to produce and turned around to face his friend, near demonic grin proudly displayed on his face.

Eri looked vaguely surprised at the profanity, but hastily got over her shock.

“Would,” She paused, gathering courage, “Would you help me get out of here?” 

Midoriya dislodged enough glitter to last several centuries with how enthusiastically he nodded his head.

With absolutely no hesitation, he lunged at the metal door containing them, tearing it to shreds with unbridled determination and surprisingly strong teeth. He held out his hand for Eri and, barely giving her enough time to maintain her balance, bolted.

Nezu bared his teeth at the man in front of him.

“I am going to forcibly make sure you can never reproduce unless, for the love of Kami, you help me find my son.”

Nighteye's muffled response was inaudible through the duck tape keeping his mouth shut, but the unadulterated terror in his eyes was enough for Nezu to gather the basics of what he'd said.

Nezu reluctantly removed the tape, but not before whispering in the hero's ear.

“If you fail me, I'm going to burn every fucking piece of All Might merchandise you own in front of you.”

Nighteye promptly took a short time out of consciousness.

Midoriya tested the weight of the chair leg he'd acquired on his journey and swung it with all his five year old might at the approaching criminal's kneecaps. They went down and, in a manner that reminded Midoriya of an overly dramatic cat that had been pushed over, did not get back up again.

After a whole three minutes of fighting, there was only one man still left in their way. 

The child narrowed his eyes, readjusting his grip on the chair leg threateningly. 

Chisaki stared back, hand paused mere inches away from the wall in preparation to reshape it.

Midoriya, however, failed to give him the chance, instead opting to run directly at him, less than no hesitation as he kicked the villain between the legs.

If any of the other Shie Hassaikai members hadn't been knocked out by two determined children, they most likely would have winced in sympathy.

Whilst Chisaki was rolling around on the floor in agony, Midoriya took the opportunity to clamp his teeth around the arm the villain had instinctively raised in defence, biting as hard as his concerningly strong jaw allowed in a manner that reminded the child of a KitKat.

(Midoriya was having a break and a KitKat, of course. By ‘break’, he was referring to what he was currently doing to the criminal's arm.)

Chisaki shrieked, still reeling from the child's first attack, and gave his best shot at grabbing Midoriya in order to activate his quirk.

Unfortunately for him, before he was able to lay a finger on the boy, the nearest wall was kicked in by a quirk powered leg, sending rubble cascading into the once clean hallway.

Iida Tenya narrowly avoided face-planting in his desperation to arrive in time, giving himself minimal opportunity to regain his balance before launching another kick directly to Chisaki's head, firmly removing the man from the plain of what was commonly referred to as ‘awakeness’ and initiating a wonderful, heartwarming introduction between the inside of the criminal's skull and his brain.

This, of course, resulted in what's known as a ‘concussion’ (The secret love child of the aforementioned ‘inside of the skull’ and ‘brain’.)

Nezu slipped off of Iida's shoulders and wrapped Midoriya (who, mind you, was still chewing on Chisaki's arm like a cat devouring charging cables) in the tightest hug his short arms could manage. His eyes teared up, but all parties in the interaction were intelligent enough to not mention it.

“Oh, Izuku, I'm so glad you're alright. I'm going to buy you all the glitter UA's budget can afford, and help you decorate Shigaraki's room with All Might merchandise, and hunt down every hero who's signature you want!” 

Midoriya sniffed, hugging back just as tightly, his little child hands wrinkling Nezu's suit (Although the man did not mind, he would gladly sacrifice his entire suit collection and sweat to only wear floral print shorts and obnoxiously branded shirts for his son)

Eri cleared her throat.

“Mister engine legs, how did you find us so fast? Also why is there a man in handcuffs over there?” 

“Well,” Iida paused just as quickly as he'd started speaking, the realisation that he had no clue what the name of the child in front of him was. He glanced at Midoriya (who was still hugging his father) and continued, “Well, Eri-San, Izuku and I have a method of communication that transcends the neurotypical methods, which is known as Autism to Autism communication.”

Iida took a breath, as he'd forgotten to do so whilst talking.

“It's simply elite. As for the man… Well, Nezu required a little assistance in locating this place and, as it turned out, Nighteye-San had the information needed. He, ah, took a little persuading, though.”

Eri glanced between the teenager and the grown adult.

“Can I kick him?”

Chapter Text

Shigaraki swore loudly as he glared down at the remains of what used to be his toothbrush, which slipped through his fingers in their new dust form. Not only was this his fifth toothbrush in as many days, but it was his first one that wasn't cursed with the colour scheme of All Might.

 He mourned, briefly, before taking a deep breath and trudging towards Nezu's office. It was, with the lack of a better phrase, the Walk Of Shame™

It was more than a pleasant surprise that the office was empty once he finally had gathered up the courage to push the door open. It took him a moment, but he finally remembered that both Nezu and Midoriya had gone to the aquarium as a reward for Midoriya going a whole five hours without biting someone. 

It was, without a doubt, a reason to celebrate; the boy had beaten his previous record of forty three minutes by a landslide and Shigaraki was incredibly proud of him, along with most of the UA staff. (Though, ‘proud’ may not be the correct word for the others, perhaps something more along the lines of ‘relieved’ would be more fitting)

He slunk back to his room, keeping to the shadows in favour of the miniscule chance that the dreaded ‘social interaction’ would be potentially encountered.

(Several students spotted him, and the staff had to reassure them that no, there was not a break-in, the grumpy NEET was supposed to be there)

Midoriya gaped, wide eyed at the whale shark behind the glass, wide mouth matching his own current expression. The creature was undeniably majestic and, somehow, was following the child around the aquarium. 

It had taken the boy a while to notice, but after the shark had broken through at least five other enclosures in their efforts to keep up with Midoriya, it was a little more than difficult to ignore. 

The whale shark, which Midoriya had lovingly nicknamed ‘Neon Pink Post-It Note’, was doing what both Nezu and Midoriya assumed was their best attempt at a smile. The child smiled back, widely, and Nezu resisted the normal and natural instinctual urge to pull out his phone and take enough pictures of his son to fill up the rest of his storage.

Swimming around happily, Neon Pink Post-It Note seemed content, so Nezu decided it was the perfect time for a snack break.

A pair of small boxes were fished out of his bag, and, after navigating towards the nearby bench, they began to consume.

Nezu had to admit, he was rather ecstatic about his son biting into something that wasn't another human in public. 

(Neon Pink Post-It Note nosed the glass separating them from the Small Green Child, staring longingly at his edible looking hair.)

The Principal's ears twitched violently as Midoriya gasped in excitement. He grabbed Nezu's arm, shaking it slightly.

He pointed ecstatically at a young adult with blue skin, kicking his feet frantically.

Nezu glanced over to where his son had pointed and, sure enough, Awata Kaoruko, his former student, was wandering around the aquarium in civilian clothes, evidently off duty.

“Ah, yes! Well done Izuku-Kun, I'm very impressed that you recognised her!” Nezu reached into his suit pocket and pulled out a sheet of stickers, peeling one off and sticking it onto his son's t-shirt (the aforementioned t-shirt was a sage green, with a badly drawn cat plastered on the front).

“Would you like to see if we can get you an autograph?” He queried, tilting his head slightly to emphasise his questioning tone.

Midoriya nodded at a speed that made Nezu fear he might gain a concussion.

He led his son towards his former student, glad for their similar height. 

“Well, hello again, Awata-San! It's been a while, hasn't it!” 

Bubble Girl gasped at the sudden appearance of her old teacher, but it didn't last long before her eyes wandered over to the small child who was most certainly not a blood relative of the hybrid.

“Oh, wow, who's this little guy?” She cooed, bending and straightening her fingers in a manner that reminded Midoriya of a cat kneading a blanket.

“This is my son, Midoriya Izuku.” He stated proudly, “He bites!”

“Oh!” She smiled blankly. 

“Isn't he the cutest?” Nezu chuckled, struggling to lift the boy above himself as if a proud chinchilla displaying a rather interesting twig.

Bubble Girl hesitantly reached out and, when Midoriya (to the surprise of all three of them) did not bite, she ruffled his hair gently.

(Neon Pink Post-It Note stared at the interaction in jealousy.)

There was a ping from the Principal's phone, and, upon further investigation, it was from one of his employees.

“Ah. It appears we are required back at UA. I do hope you have fun here, Awata-San, good luck!” 

Bubble Girl smiled and waved, muttering “What the fuck!” Under her breath at the pair left.

(“His kid, I swear, I've never felt fear like that before.” She sobbed across the phone.

“Interesting..” Nighteye responded, humming despondency.)

(Neon Pink Post-It Note proceeded to obliterate the aquarium and the sea creatures were somehow returned to their natural habitats in the wild.)

Nezu squinted at the social worker, refusing to blink first.

“Well, Sir,” The man ground out, “We have no way of knowing if the boy is safe under your care.” 

Nezu bared his teeth in a mockery of a smile, “Oh, that's surprising considering the fact that he's been under my care for most of the school year at this point. When did you say you were supposed to investigate?”

The social worker narrowed his eyes in a last ditch effort not to close them completely.

“Well, considering his… condition, it took us a while-”

Nezu cut him off, more than happily, “Condition? My son has no conditions. Unless, of course, you're referring to his quirk status. Do they really allow you to discriminate openly like that, or did Izuku do something specific to you?”

Outclassed by the chimera, the social worker finally conceded, blinking and glancing to the side shamefully.

“Well, then, I suppose this is over with then!” Nezu's voice was back to its usual cheerful tone as he clapped his paws together once.

“Indeed.” The social worker cleared their throat and shuffled out hastily.

Once they were gone, Nezu turned to his son.

“Would you like to get some merchandise as a reward? We can bring Eri-Chan along, if you'd like.”

Midoriya, after less than a moment of thought, nodded determinedly.

“Well, then, we better get ready!” 

(The social worked handed in their resignation the second they were able to, and stayed in therapy for an additional six years.)

Chapter Text

Nezu wouldn't say he was the best supervisor. No, that title went out to other people who were decidedly not him. Eri and Midoriya were currently ransacking the All Might section of the store. Ransacking as in throwing as much merchandise as physically possible into their cart; Nezu had taught them better than to cause inconvenience for retail workers.

This respect, however, did not extend to rude customers, so when a middle aged man stomped into the store, yelled at the workers who deserved a raise for simply being in his presence and knocked things off of the shelves on his way to the same section as Nezu's children, the principal did nothing to stop Eri from lunging at the man and, in a mimicry of her brother's usual actions, bit him.

Now, one might assume that someone who had the sheer audacity to bother retail workers in the way he had would have the courage to back it up. This was not the case.

The man screamed in a manner that would match that of a world class actor, and dropped to the floor.

“I'm being attacked!” He shrieked, rolling around and dramatically flopped about.

Midoriya looked up at Nezu with a raised eyebrow.

“Hm. Eri, sweetheart, would you mind letting go so we can check out?”

Eri widened her eyes, practicing the look that Izuku had taught her.

“We can get some caramel apples on the way back, if you'd like?” 

With the same level of enthusiasm that one might expect from the owner of a winning lottery ticket, Eri released the man and jumped up, grabbing Nezu's extended paw. 

With a large amount of difficulty, Nezu pushed the cart forwards, blatantly ignoring the whining man on the floor.

Of course, there was nothing wrong with having a low pain tolerance, and nothing wrong with men expressing weakness, that wasn't Nezu's problem with the stranger. His problem began when the man had no respect for others yet expected the opposite when the aforementioned ‘others’ interacted with him. 

The trio made their way towards the front of the store to pay without issue, but the same couldn't be said once they had left. 

Although Nezu wasn't really surprised that the entitled man had reacted, he wasn't fully expecting him to retaliate against Izuku.

Nighteye took a deep breath. He hadn't had the best experiences involving Nezu recently (or ever), but he absolutely needed parenting tips from the man. He'd spoken to his therapist, and she'd recommended bringing an emotional support animal, so he'd shoved a pigeon under his coat.

The journey to UA was both awkward and long, not to mention how rude the taxi driver was, questioning him on the ‘coo’ing sound emitting from his clothes. 

On top of that, he'd had to wait in the cold for half an hour for someone to open that gates (the only reason he did not submit to hypothermia was due to the pigeon who had now been named Magenta Ink Cartridge (45% Full), who had made a rather impressive portable heater.)

Nighteye brushed himself off, “Thank you, Aizawa-San. I'm here to speak with Nezu?” 

Instead of responding with words, the hero grunted and wandered off, leaving Nighteye to fend for himself in the unknown environment.

Almost immediately, he pulled out his phone and began spamming messages to Mirio requesting assistance.

Nezu did not have enough time to react before the man grabbed Izuku's wrist, his hand glowing a poisonous green as he activated his quirk.

With less hesitation than an impulse buyer, Eri struck again, biting and clawing like a cornered raccoon as she defended her brother with (quite literally) tooth and nail.

The stranger let go and cried out, but Nezu was much more focused with his son. 

“Izuku? Are you okay?”

Izuku stumbled slightly, humming in a disconnected manner.

Once Miro had finally arrived to rescue him (Although Nighteye did have to create a faux reason as to his visit) the hero could have collapsed in relief.

“We just have to pass by the support department and it's practically right around the corner!” Mirio spoke, with far too much energy for a teenager to even /think about being in possession of.

“Although, you do have to be careful, you know?” He continued cheerfully.

“Careful?” Nighteye turned to look at him, puzzled.

This however, was his fatal flaw. For some, it was pride, for others self doubt, but for Nighteye it was tilting his head in the hopes of better understanding.

The doors to the support course practical room blew off, knocking directly into the hero and successfully initiating the first meeting between the inside of his skull and his brain (talk about a meet-cute)

He hit the floor, knocked out.

A student staggered out of the room, removing her goggled and blinking owlishly at the hero's body.

“Hm.” She didn't give herself much time to think before she grabbed his ankles and dragged him back towards the classroom, a suspicious trail of red following.

Mirio shook his head in mourning before turning around and heading back to his lesson. His attendance was on the line.

(Mei Hatsume stood back and glanced at her handy work. The random man's corpse had been shoved haphazardly into a cardboard box (half of him stuck out rather obviously) and she'd duct taped the box partially shut. In a true show of artistic prowess, she'd additionally stuck on a post-it note with the words ‘totally not a dead body’ written on it.)

Nezu blinked widely, staring down at what had been his son roughly five minutes ago. Technically, it was still his son, just… older.

“Oh, my. Are you alright, Izuku?” He questioned, brushing Izuku's hair out of his face. 

The teenager blinked, one eye at a time, and promptly lost the remains of his consciousness. (It was a shame, he'd been saving up for a special occasion.)

“Ah.”

Recovery Girl was already on her way, which left one loose end for the teacher to clear up.

“You attacked my son.” He stated, an eerie grin spreading across his face. It was not a grin he would direct towards his son, nor anyone other than his worst enemy.

(The car park was empty.)

Midoriya awoke in Recovery Girl’s office. It took more than a moment for him to regain his senses, but once he did he was able to make out the familiar form of his father, seated on his left and a stranger on his right.

Nezu's eyes opened suddenly, meeting with Midoriya’s. 

“Oh, Izuku, how do you feel?” 

The teenager opened his mouth to respond, but the complaints of his stomach beat him to it.

“Right! I'll be back soon, just hit the call button if you'd like anything else, okay?”

The greenette nodded blearily as his father darted out of the room, fiddling with his front paws.

Instead of wasting his little energy on pretty much anything, Midoriya opted to return under the snug covers of the sheets and welcome the tantalizing call of sleep.

His attempts were unsuccessful. 

He opened his eyes again, perhaps to turn over and hide deeper into his blanket cave, but was greeted (read: fucking jumpscared) by the sight of the stranger's hand reaching over him. With the fog-like remains of sleep still haunting his mind, Midoriya only had his instincts to rely on. Technically, one could argue that it wasn't his fault he bit into the stranger's forearm.

It was, after all, like giving a plastic drinking straw to a child and telling them not to chew on it; you know the outcome and you're tempting fate.

It took Midoriya a moment to realise that he probably shouldn't be biting this random person, but by that time another man had walked in.

“Ah, I assume this is Midoriya-San, then.” 

The person currently being bitten let out a small sound of pain before giving up his attempts at vocalising the amount of sheer agony he was in.

With less than perfect timing, Nezu strolled back into the room, arms full, with different kinds of snacks.

“Oh, Yagi, I see you've met Midoriya, and-” He cut himself off as he stared at Midoriya, who was currently imitating practically every fictional zombie ever.

“Well, that didn't take long.” He muttered.

“Izuku, would it be alright if you were to release Detective Tsukauchi?”

In an almost shameful manner, Midoriya let go of his forearm.

“I suspect we have some.. talking to do, my son.” Nezu spoke softly, folding his paws.

(Nighteye had finally managed to escape the support department, despite being taped in a box and beaten with several shovels once he'd escaped. (it seemed the students thought he was a zombie) Despite all that, his determination was strong and he powered through until he reached Recovery Girl’s office. He'd passed by Aizawa and a young girl he assumed was his daughter on the way, but he'd been pointedly ignored.

With his last remaining strength, he'd pushed the door open, only to find himself eye-to-ankle with Nezu, who had been wearing an unusual bow tie and hat. And with that, he broke down into uncontrollable tears.)

(Magenta Ink Cartridge (45% Full) was fine, and lived in UA for the rest of their immortal life.)