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2023-12-25
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2025-09-17
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17/?
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Monkey King Deku Beyond the Horizon

Chapter 15: Unleashing the Inner Monkey Power

Chapter Text

Unleashing the Inner Monkey Power

Explosion sounds can be heard within the streets several block from the fight where Izuku and Demon Bull King is about to erupt, and those are caused by Katsuki having his battle with the Red Son who is shooting his fire at him.

"You'll be dead by the time my father killed that green hair friend of yours." Red Son proclaimed with a smirk.

"Shut up, I don't care about that Deku idiot." Katsuki yelled.

"But one thing I do know is that he won't let himself be killed by that overgrown barbeque meal with that stupid hoop hanging from his nose." Katsuki insulted the bull demon.

Katsuki flies toward Red Son throwing a punch that he parries with his arm and tries to fire a flaming blast at the yelling teenage, but he also dodges that and the two begin exchanging blows though more like dodging each other's strikes.

While Red Son definitely has more years of combat experience for being centuries old and being powerful in his own rights. But Katsuki is strong too, being able to keep up with the speed and having his own firepower to attack Red Son with.

"Oh, are you still mad about that time I easily took you down?" Red Son asked in a mocking tone.

"That wasn't even a fight! You caught me off guard with that stupid powder!" Katsuki pointed out, remembering how it really happened.

"Well, duh, like I was going to waste my energy on a puny mortal like you." Red Son shrugged.

"Besides, you served your purpose in freeing my father." Red Son mentioned.

"In other words, it'll be all your fault for having brought destruction to this stupid city!" Red Son smirked, pointing at Katsuki with his eyes shadowed by his hair.

"I can already see the disappointing and angry look on your friends' faces about you fucking up with life and will be known as the loser boy who" But Red Son was suddenly cut off when Katsuki suddenly landed a powerful explosion punch in the face.

(Music: Inside the Fire, Disturbed)

That attack sends the son of the Demon Bull King flying to crash through a top corner of the building and falling for a bit until he got a grip on himself.

"That felt… stronger than before." Red Son groaned.

"You talk too much, you know that?" Katsuki said.

Katsuki comes at Red Son again with a speed he could barely see as he lands a few more explosive attacks and a kick on the side making him cough a little.

"(It's not just his power that's stronger, he's suddenly gotten faster too!)" Red Son thought noticed this sudden change of this human boy.

Red Son pulls himself together and manages to dodge on strike from Katsuki to throw a fiery kick on his stomach to push him back, then he goes charging at the boy to attack with his own strength.

Some of the fire attacks have landed on Katsuki, but he doesn't seem to be in pain and his body is still moving like nothing is happening to him and there is also the fact that his fire isn't burning the boy's body as it should.

Katsuki and Red Son go on with striking each other for a while until the latter got anger that he headbutted his opponent and kicks him down.

"None can survive my fire!" Red Son proclaimed as he forms two powerful looking fireballs from each other.

"YOUR SOUL WILL BE BURN TO HELL!" Red Son thrust both fireballs forward massive spiraling fire attacks. This attack will surely burn that stupid boy so much that there will barely be any ashes left of him.

However, Katsuki didn't feel any fear of the giant fire attack that is coming at him and did the craziest thing he could do. He propels himself up and right above Red Son's attack heading all the way to the fiery bastard along with letting his hands near the fire attack for some extra heat.

Katsuki attacks at the bastard who could only gasp in shock when seeing him up close, and he thrust both hands right at Red Son's face unleashing one big explosion which also connected with the fire attack making it even more powerful that shock the city block.

Red Son was sent flying from that powerful explosion attack and falling toward the street and crash landed on the side of a building creating a big crater from the impact along with a few little fires around him.

(Music End)

"Looks like I'm the new legendary fireman, bitch." Katsuki grinned as he lands right in front of the down Red Son.

"F… Fool. My father will… d-destroy you…" Red Son groaned as he looks up at Katsuki.

"Not if that loser Deku do something about him." Katsuki said before he turns around and walks away. His arms are shaking from the pain of having to use his Mystic Sage power so much, but that wouldn't stop him from fighting on.

(Izuku vs Demon Bull King)

Izuku just lands on a building but had to quickly jump away from the incoming punch of the Demon Bull King breaking through, Izuku tries to strike his head with the increase length of the Ruyi Jingu Bang, but the bull demon reacts fast to dodge that.

"You will not stop me from my conquest!" Demon Bull King grabbed the staff to pull the boy closer.

Demon Bull King tries grabbing him to crush Izuku in his hands only for the boy to jump the big hand runs on the staff, then having it shrink to escape his grasp and use it to jump high into the air and on top of a tall building.

"Do not think you can run from your doom!" Demon Bull King said and started climbing up the tall building fast.

Izuku gasp when he saw the bull enemy is throwing an uppercut through the building to get to him, he quickly runs for his life to avoid the attack use the staff to jump to the other building and flipping the Ruyi Jingu Bang to jump from one building to another.

"Coward! Come back here and fight!" Demon Bull King shouted in rage.

The big demonic bull man gave chase trying to grab Izuku whenever he gets close enough to reach out his hand, but Izuku managed to get away from each attempt though there were a couple of close calls, and his butt almost got burned when the bull let out a fire attack.

"(I need to lose him and think of a plan.)" Izuku thought looked around and saw one building ahead. That gave him an idea.

Izuku held the staff on one end with the other side pointing right at the Demon Bull King.

"(Please, like I wouldn't know what you're going to do.)" Demon Bull King thought smirked, already seeing through that boy's plan to attack him with the staff.

But when Izuku extend the staff, it was the end he was holding going toward the building in front of him and the staff made contact that pushes Izuku straight toward the Demon Bull King.

"What?!" Demon Bull King gasped.

Izuku performs a cartwheel in the air to swing the longer end of the Ruyi Jingu Bang to go high into the air and expand the size being about three times the size right on the Demon Bull King's head slamming him into the street.

"He's down, gotta strike him more until he's knocked out!" Izuku dives at the bull-bully man.

Izuku position the staff aiming right at the Demon Bull King, remembering that staff fighting video he saw the other day and started the first strike extending down at the demon.

"Do you think you can" Demon Bull King was about to say something about him being tougher and stronger, but he was cut off when the end of the staff hit him in the face.

Izuku attacks with the rapid staff attack on the Demon Bull King though he only manages to get in at least nine hits before the bull grabs it with his big hand.

"Not good enough!" Demon Bull King swinged the staff with Izuku being dragged and crashing onto a building and some windows.

Izuku quickly shrink the staff back to normal size though that didn't help him with the landing as he lands hard on a flying car that was parked in one of the airborne parking spaces.

"Shit…" Izuku groaned.

"Fighting a raging demon is harder than it looks." Izuku commented as he forces himself to get back up.

Izuku gasps as he quickly ducks to dodge a lightning strike from the Demon Bull King of his armor then runs when more lightning comes at him.

"Go ahead, keep running to stay alive. But it won't be for much longer." Demon Bull King smirked.

Izuku is hiding behind a building and trying to catch his breath from all the running and attacking throughout this battle, but it feels like he has been able to damage the Demon Bull King much with how durable he is given his size and the armor he's wearing.

"(Think, Izuku. I need to bring him down for the count, make the Ruyi Jingu Bang the biggest I can make.)" Izuku thought tried to think of a plan.

Izuku then uses his Third Eye Mystic Sage to see where the Demon Bull King is, but he was too slow to use it because the big hand of the bull demon came right through the building and grabs hold of the boy.

Demon Bull King tosses the boy away and fired lightning to zap him painfully followed by a quick dash charging punch that pins him against a wall, he almost drops the staff but kept a strong grip on it.

"Such a foolish boy. Do you really think you actually had a chance to defeat me?" Demon Bull King asked sarcastically.

"Sun was a fool for leaving this fight to a puny human like you." Demon Bull King pressed his fist on Izuku harder, making him scream in pain a little.

"It's like you had the thought that you could beat me just because you can lift the staff and use its power." Demon Bull King laughed mockingly at the boy.

"You are no Monkey King. You're more like a monkey kid." Demon Bull King insulted with some more laughing.

Izuku groans in pain, feeling his bones breaking from the intense power of the demon bull's strength and fearing that his life is going to end here.

"(Damn it, what was I thinking? I can't take on someone like the Demon Bull King who can fight Gods like Sun Wukong.)" Izuku thought started doubting himself.

"(I did everything I could, but now it's all for nothing.)" Izuku thought feared.

"Say goodbye, boy." Demon Bull King smirked, ready to end this little game.

"KEEP FIGHTING!"

Izuku gasp softly when he heard that voice, he looks over to his right and down to see Suzu standing in the middle of the street clutching her fists hard.

"You can do it! Izuku Midoriya, I know you can because you are more than the staff and the Monkey King believes in you too! Just like I do!" Suzu shouted.

"Stupid little bitch." Demon Bull King found this human girl to be annoying.

"Suzu…" Izuku was surprised to see Suzu cheering for him.

"You have a big heart and more strength in you than you ever realize." The words Suzu said back at Flower Fruit Mountain repeated in his head.

"If you still think you can't do it alone, then I'll fight by your side until the end!" Suzu promised.

"Mystic Art: Triple Sound Blast!" Suzu fired her soundwaves at the Demon Bull King giving him a painful headache and almost making his ears bleed.

"Enough!" Demon Bull King unleashed a big fire attack at the blind girl to shut her up.

However, that fire attack was interceptive by another fire attack which surprises him.

"I don't think so!" Shantae entered the scene with a fireball floating above her hand.

"You will not have this city!" Shantae as she stood by Suzu's side.

"Oh please, like weaklings can do anything to harm me." Demon Bull King rolled his eyes.

Demon Bull King conjures his demonic energy from his hands along with the fire to make it a dark purple flame, then slams that fiery fist into the ground causing it to explode up making the girls launch toward him to be smacked down.

"No!" Izuku screamed.

And then he started to remember something Sun said to him as well back at the mountain.

"As long as you got that strong heart of yours, then you can really make a big difference for the world."

"Now die!" Demon Bull King launched his fist at the girls to kill them right on the spot.

Izuku saw what's about to happen to the girls, to Suzu, the very girl he loves.

His body may be broken and most likely tired from all this fighting.

But he is not out of this fight, and he will beat the Demon Bull King because everyone is counting on him. Once again, being reminded to have more faith in himself and to push himself to go beyond anything he can do.

He eyes started to glow like he's about to use his Mystic Sage power again, only this time they are glowing green instead of gold along with his whole body.

The fist of the Demon Bull King made contact with the girls, crushing beneath them.

Demon Bull King smirks thinking he just crushed some losers under his fist, but he became shocked to see there are no girls in sight like they have just disappeared.

"Wait, something doesn't feel right." Demon Bull King said.

He turns his head and became even more shocked to see that the green-haired boy is suddenly gone from his fist.

"Looking for someone?" Izuku asked.

Demon Bull King looks up though no sigh of him and then down at the street finding Izuku with the two girls having saved them from the punch of death.

(Music: Strongest Alive, Death Battle: Izuku vs Asta)

"Izuku?" Suzu was surprised to feel Izuku, and his body feels stronger for some reason.

"Don't worry, I promise I stop him. Like a hero." Izuku promised Suzu, and then kissed her right on the lips much to her shock.

Shantae squealed in shock as she took out her phone to record this special moment for the now official couple.

"Demon Bull King." Izuku stood up, leaving Suzu blushing shock.

"You mentioned earlier that I wasn't the Monkey King, you're actually right about that." Izuku admitted.

"But I'm going to be the NEXT Monkey King after Sun Wukong, for I have been chosen to become his successor!" Izuku revealed loudly which shocked the Demon Bull King and made him angry again.

"And the name you will hear from now on, one who will carry on the legacy of the Monkey King. I am the Monkey Deku!" Izuku tapped the Ruyi Jingu Bang onto the ground, and he started glowing brighter with the green aura.

Then his clothes have changed to suit him better for the battle against the Demon Bull King into a style similar to that of a ninja with gold shoulder pads and a matching belt, and the suit appears to be that the fabric is made of flexible metal with blue lines on the arms and legs. And the outfit is completed with a crown that is just like the Monkey King's.

"You little motherfucker!" Demon Bull King charged at Izuku.

However, Izuku had already leapt at the bull demon right to the face and threw a punch right between the eyes sending him flying and Izuku blitzes past him to smack Demon Bull King up toward the sky to prevent him from hitting the building.

Demon Bull King groans in pain, such pain he hadn't felt in centuries, not since his last battle with Sun Wukong.

Demon Bull King screams in rage and unleash both elements to strike down at the boy, but he keeps on dodging with ease and even smacked a few of them right back at the bull before reaching him for some barrage of strikes all around him even making some cracks on his armor.

Then Izuku delivered the final blow as he thrust down the Ruyi Jingu Bang right at Demon Bull King, expanding the size bigger than the demon himself and slams him down onto the ground so much that it causes a very bright golden-green light that can be seen very far from the solar system with a powerful shockwave.

(Music End)

Everyone was very shocked to have felt that shockwave from close by and that blinding light, Izuku is standing over the giant crater he made with the Demon Bull King hurt and bruised.

"I-Impossible." Demon Bull King groaned.

"You lost, Demon Bull King. I will only give you this one chance to surrender." Izuku pointed the staff at him.

"Curse you, you stupid… noodle boy!" Red Son was angered, but his body is still hurt from his fight with Katsuki.

"It's time we leave, my son." Princess Iron Fan grabbed her son and moves to her husband.

"You may have defeated us today, but we will be back, and you can bet we'll take this city!" Princess Iron Fan promised revenge as she forms a tornado around herself and her family.

"Your death will come by my hands, and Sun Wukong will watch you die. Remember that Monkey Deku!" Demon Bull King declared before they vanished.

Jouryuu can sense that her leaders are gone which means the battle is lost.

"All Bull soldiers, retreat! The battle is lost!" Jouryuu ordered. She and the Bull soldiers that are able to move have run off from the city.

Izuku stands proudly with the Ruyi Jingu Bang standing tall as well, smiling that the day has been saved.


KO a new chapter is done and hope you all enjoy it!

Izuku did it! He was able to tap into his own inner power with the staff and beat the Demon Bull King to make him and his family retreat, passing his first battle on his first step to becoming the next Monkey King. Oh, and he also got that kiss with Suzu too!

KO comment, favorite, and follow through of how this story will go!