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Assassination Classroom x Reader by miestardustscribbles
Fandoms: Assassination Classroom
20 Oct 2025
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You are Kunugigaoka's top student, student council president, and a master of deception. While admired by your peers and close to Gakushu Asano, the son of the ruthless principal, you hide your true identity as the youngest prodigy of a renowned family of assassins. Torn between your calculated facade and the brutal expectations of your family, your life takes a darker turn when your mother orders you to assassinate Principal Asano in exchange for freedom.
But hesitation during the mission exposes your identity, forcing you into an impossible situation: infiltrate Class 3-E under the guise of a mysterious transfer student to eliminate the alien teacher, Koro-sensei.
As you navigate your new role, your bond with Gakushu deepens, but Class 3-E's enigmatic Karma Akabane begins to challenge your indifference. Caught between Gakushu's quiet admiration and Karma's unpredictable intensity, you find yourself questioning not just your loyalties, but your own heart.
In a world of masks, deception, and assassinations, will you succeed in your mission, or will your conflicting emotions and divided loyalties become your ultimate undoing?
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light from a dying moon by SilverMatrix_Glitch
Fandoms: Assassination Classroom, Sally Face (Video Games)
18 Oct 2025
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The flashing lights do manage to drag him out of bed and to his window. It’s not the best view of whatever’s happening, and Nagisa can’t hear much of anything from four stories up, but he just manages to see a man being walked out to the back of a police car in cuffs. Ms. Yukimura is speaking to what seems to be a detective. It might just be his mind playing tricks on him, but he’s almost certain he sees a small black cat slink away into the forest.
He shivers hard without the warmth of his blanket. He’d overestimated ‘morning’ when he’d woken up. It’s dark and cold, and Nagisa had abandoned his blanket with his bed when he’d dragged himself up to the window. But it doesn’t really seem like there’s all that much to it. It can’t be any later than four in the morning, so he lets himself slip back into the warmth of his covers.
It takes him just a little bit too long to properly fall back asleep.
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or, in the fallout of divorce, nagisa and his mother move to addison apartments.
Series
- Part 4 of silver's whumptober 2025 fics
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Navigating the world of teaching on a low salary and high hospital bills to pay by TheSteinsGateFormula
Fandoms: Assassination Classroom
12 Oct 2025
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In another reality, Koro-sensei stayed human, married Aguri, and taught E Class.
But, this brought with it its own set of problems.
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Assassination Classroom x My R
- Language:
- English
- Words:
- 534
- Chapters:
- 1/1
- Kudos:
- 6
- Hits:
- 104
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Summary
“I'm on the dance team.”
“But.. you’re a boy?”
Boy on the dance team meets Boy in Theater
“Yeah, right! You don't exactly seem like the kind of guy who likes to act.”
“Oh please, I'm The director.” He scoffs
—7 months—
“Would you like to go to the dance with me?”
“But.. you’re a boy?”
“Very funny.”
“ I would love to dance with you.”
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There’s a child in a containment cell.
There’s a child in his containment cell.
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In which the Reaper was not Yanagisawa Kotaro’s only experimental subject
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Karma, príncipe de un reino próspero, se ve obligado a comprometerse con el príncipe del reino con el que hay rivalidades, para así acabar con los conflictos entre ambos reinos.
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This is the story of Assassination Classroom, but with all original characters in E class.
This was an old submit-your-own-OC story that I’m cross-posting from ff’n in case I ever loose my old account.
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Pokémon Classroom by ShadowGengar28
Fandoms: Assassination Classroom, Pocket Monsters | Pokemon - All Media Types
26 Aug 2025
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A young trainer aspires to become the best Pokémon master, and his story is about to change when he meets the students of E Class. A special class that aspires to be the best trainers and students at Kunugigaoka School, and at the same time, they are destined to save the world. It's time to fight like assassins!
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[New Game]
[Continue Game]⇦Detectives Koro and Karasuma have have just cracked a case and arrested a serial killer. All is well… or is it? There seems to be yet another serial killer on the lose, and it's up to them again to save the day!
Required reading: Part 1.
Series
- Part 2 of Continue?
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Unreal Assassin by Wendy_Noire
Fandoms: Assassination Classroom, Harry Potter - J. K. Rowling
31 Jul 2025
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"Korosensei, why is there a child sleeping in the teacher's lounge?"
An odd question made more odd when you learn that this is the classroom of assassins. The unusual situation being discussed easily, as though this wasn't a random child, but a question on a test.
Harry Potter, the unknown hero of the Wizarding World, was never treated kindly by his aunt and uncle. One day he found himself living what must be a dream: He was being beaten by Vernon as usual when he found himself in a forest he had never seen before with a giant, yellow creature that seemed to control the scenery.
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Is Harry the only Wix in class 3-E? Can he help them achieve their goals? Does he still have to face the same destiny as he would before?
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Bonus Fight: Nagisa Shiota vs Tokiyuki Hojo by AzureWriter83
Fandoms: Assassination Classroom, 逃げ上手の若君 | Nige Jouzu no Wakagimi | The Elusive Samurai (Manga)
30 Jul 2025
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Many think that pure brute strength is the key to winning a battle, but these two prove that such victories require so much more. Now, which creation from Yusei Matsui would win this dance of death?
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A Hotel For Society's Scum by Wendy_Noire
Fandoms: Hazbin Hotel (Cartoon), Helluva Boss (Web Series), Assassination Classroom
27 Jul 2025
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A hotel to redeem the sinners of hell so they can get to heaven sounds like a stupid, but the 28 assassins taught by the moon destroying giant yellow octopus are more than used to the impossible.
3-E are Overlords, though most think they're a group of 3, each of them working together for their communal goal of a livable version of hell. If heaven scorns them and the hotel they choose to help and support, well... Aren't the End Class used to that? They were the scum of society after all. So who is better placed to help Charlie's naive plan?
Series
- Part 5 of Solar Dust
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Nagisa Shiota is a Grunt Worker, a nobody, so why do the executive members seem so interested in him.
OR I wanted an AC Yakuza story so I wrote an AC Yakuza story
FINALLY UPDATED
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"You get a call from some creep with no caller ID saying you've inherited a house from a relative you've never heard of and you just-" Karma cuts himself off with an incredulous groan, slipping into a harsh laugh. "No, you're exactly the kind of idiot to fall for that."
"It's free," emphasises Terasaka, and he can just picture Karma's molten eyes narrowing.
While apartment hunting, Terasaka learns a distant (distant, distant) relative of his has died and left him, the oldest living relative, with a sprawling, free house in the Kunugigaoka mountains. What follows is a near-death experience and the realisation he's not the only resident (un-)living there. Now he's up in the business of dead people wherever he goes.
[SLOW UPDATES BUT NEVER ABANDONED]
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Nagisa somehow traveled back in time, a year before Korosensei became his teacher. After unspeakable events took place in his original timeline, Nagisa can say he's happy about seeing his friends alive and well, after a very long time. But with that happiness comes the pain of not being able to connect with them as he did before.
A loophole he's found, however, was becoming a teacher at his old junior high. After changing his look and overall personality, Shiota Nagisa now goes by Yamada Naho.
Series
- Part 1 of Scattered Reveries
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Sometimes I wonder why I still bother using these words. Class, classmates, classroom…
The blank hall where our wheelchairs are lined up in neat rows next to each other, with armed guards standing by the walls keeping an eye on us, is nothing like any classroom anywhere in the world, and my classmates… well. Fellow prisoners would be closer to the truth. Or fellow test subjects, perhaps.
But our teacher, then… she is the single thing that helps us to forget the reality around us. Today, too, Yukimura-sensei’s smile is as bright as ever.
And today, the illusion of normalcy is broken even faster than ever before.
Project 3-E: a group of infected teenagers in a world ravaged by a mysterious disease, who are trained to be the saviors of mankind.That's the plan, anyway. Some of the kids might have different ideas. And then there is, of course, the master assassin lurking around who appears to be quite interested in what is going on behind the closed doors of the lab.
Series
- Part 1 of Gifts and Curses
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"i will die your daughter."
Nagisa yearns for autonomy. Through E class, he grows, learns and succeeds. For the first time in his life, he is seen. He relearns all he was taught and flourishes.
Series
- Part 6 of adhd fixations
- Part 7 of indulgent shit
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Assassination 100 by Litty0x0
Fandoms: モブサイコ100 | Mob Psycho 100, Assassination Classroom
27 Apr 2025
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Mob wasn't good at a lot of things, he wasn't good with studying or socializing like his brother, but he was a good kid, But being a good kid doesn't give out points when you fail a very important test, that is why Shigeo Kageyama, nickname 'Mob' is getting sent to class 3-E or how Regain Arataka puts it 'the class for the "mean, weird, gangster children."
Mob has a lot more important things to worry about than gangsters and troublemakers, like
-Trying to make friends
-Dealing with the women who he saved that is now his teacher
-the yellow octopus? guy? who is basically unkillable
-His parents
-Trying not to alert the activity monitoring government about your Esper abilities while trying to assassinate your teacher's monster assistant
-Saving the worldAnd most of all getting his grades up
(Starts after Mob Psycho 100 season one and at the very very beginning of Assassination Classroom)
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What If Korosensei Was Faster by The_New_Archivist for Erotic Entertainment (Multiversal_Storytelling)
Fandoms: Assassination Classroom
22 Apr 2025
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The tale is always so simple: Korosensei is unable to protect Aguri Yukimura no matter what he tries. Although, what happens when someone else changes the natural course of Korosensei's life? What happens when fate has other plans, and the intentions of another alter the seemingly concrete path of destiny.
Series
- Part 5 of What If...?