Actions

Work Header

My Hero Academia: One Punch

Summary:

"Who the hell are you?"

The teenager in a green suit and white cape stood up and turns, giving him a look.

"I'm a guy who's a hero for fun."

A Parody/AU/Crossover with OPM and BnHA.

Warning: Contains slight mention of gore, crappy writing as well as grammar. Also a lack of plot as this is purely self-indulgent.

*Currently on a very, very long hiatus. Need time to regain my motivation for writing.

Chapter 1: Prologue

Chapter Text

It all began in Qingqing city in China. With news that a bio-luminescent baby was born. The cause was unclear but time passed and 'exceptional' individuals began popping up all over the world. As did a new threat...

Musutafu, Japan

*BOOM*

The dust cleared and a being with a bomb head wearing a vest covered with dynamite stood in a crater with unconscious heroes nearby.

"HAHAHA! 2 Class-A and 6 Class-C Heroes? You're all weak!" The being swung his hand and a tall building exploded. "I escaped prison a while back and because of all my pent up anger and frustration, I turned into a Monster! Now I can summon powerful explosions within a 50-meter radius! Better bring more heroes or I'll start going serious!"

Mysterious Beings, better known as Monsters, began showing up as well. Same with Quirks no one knew how they appeared and because of the high crime rates going on with Quirks, it looked like the beginning of another Dark Ages. But then an occupation everyone dreamt about entered the spotlight...

~Meanwhile~

A boy with green hair scratches his hair as he watches the news.

Monster Attacks Ryshi City: 16 Heroes Injured.

Civilians Advised Not To Approach City.

“Well, I guess I have time before school start~~

The Bomb Monster sent more explosions and soon the entire block became rubble with some people trapped underneath concrete and steel. It was pure chaos. 

More heroes showed up and tried to stop but they were only B and C-Class with a few A-Classes. The Bomb Monster made short work of them.

"Weak, weak and weak. All of you are weak, bring me stronger heroes." The monster shouted, "Better yet, Midnight. I have a score to settle with that bitch." He mutters the last part under his breath.

Then he heard a crying sound. Turing he saw a child around 6 to 7 years old crying, shaking the unconscious body of her parents.

"Mommy! Daddy!" she cried, trying to wake them.

He sighs and points a hand towards her "Didn't your parents teach you not to cry in public? It’s annoying to others you know." And summoned an explosion. 

He smiled as the smoke cleared, it had no doubt kill the family, he expected to see another 3 mutilated corpses but to his surprise, he saw nothing. The bodies were gone.

"What the hell?" He turns around and saw another kid, this time a teenager, holding the girl in one arm and the two parents in the other. What was odd was the green tracksuit and white cape he was wearing. He began to put down the family.

"That was low don't you think? Killing a kid I mean." An annoyed voice came from the teen.

He growls, "Who the hell are you?"

The teenager in a green suit and white cape stood up and turns, giving him an annoyed look as he folds his arms.

"I'm a guy who's a hero for fun."

...Heroes

The Bomb Monster scoffs, "So a Class-C Hero huh? I admit that was fast but-"

"Yeah, yeah let's hurry up I've got to get to school." The boy cuts in digging his ear.

Was the kid...mocking him? Now he's pissed, this kid wasn't taking him seriously? He just took down about a dozen Pro Heroes and leveled a city block effortlessly! That should make him at least Threat Level: Demon, maybe Dragon at most. And this kid was mocking him?

He holds both his arms out, he didn't care about holding back now. Even if the kid was fast he won’t be able to dodge an explosion this size, that and he wants to show this kid who he messed with, "[Megaton Bla-!]" 

*BANG*

A white glove smashed him in the face launching his head off his shoulders and leaving a trail gunpowder instead of blood.

The boy sighs, "Damn it, one punch again!" He curses his insane strength, he felt nothing as usual, on the bright side the family was safe. Then he felt something tug on his pants and looked down to see the girl.

"Please help! Mommy and Daddy are hurt!"

He knelt down to check on the parents, "It's alright kid, looks like these are mild injuries. More heroes will be here soon so just stay here alright?"

The kid wiped her tears away before asking, "W...who are you?"

He smiled, "Already told you, I'm just a hero for fun." Then he puts a finger to his lips, "Hey, do me a favor and don't mention me to the other heroes will you?"

The girl just nodded nervously.

"Great, well I have to ge...HOLY CR-COW, I'M GONNA BE LATE!" He shouts before running off, leaving the child confused.

"My name's Izuku Midoriya, I'm a Hero for fun. You're probably wondering how I got this strong as well as other stuff, lucky for you I'll explain. It all started about 10 years ago."

~10 years ago~

"You should just give up kid."

The words hit him in the guts like a battering ram. He unknowingly dropped his All Might Silver-Age action figure in his shock.

"What do you mean doctor?" His mother asked confused. "This is some kind of mistake right? The other kindergartners already have their Quirks."

"Pardon me but you're a fourth-generation Quirk user right?"

She nodded, "Yes, I can pull small objects toward me and my husband can breathe fire."

"When a kid reaches 4 years old they either get one of their parent's Quirk or a combination, sometimes it's a completely new one." The doctor pointed to an x-ray. "However, research shows that a Quirk has something to do with the presence of an extra joint in the pinky toe. Humans don't need parts they don't use, you see. A person with a Quirk would have no extra joint"

The doctor puts his hands together and looked directly at Izuku, "Sorry kid, but you're Quirkless.

 ~Few Weeks After Checkup~ 

"We're moving?!"

Izuku exclaimed in surprise at the news. Why would they need to move? Part of him thought it was due to Kacchan and his relationship worsening, and felt guilty for that. When he voiced his thoughts his mother immediately shot it down. 

"No, it's not that. It's...I lost my job." She answered sadly.

Ever since she and Hisashi had a divorce she has been working full-time jobs in order to provide the needs for Izuku and her. But recently the business suffered from bad marketing decisions and went bankrupt, forcing it to let go of some workers. She was one of them.

She saw Izuku's mood dampen, the thought that he was being a burden to his mother saddens him, and rush to cheer him up, "But I found a new job! It has decent pay, enough to provide for both of us. It's just that the job is far away, and we have to move to... Atollon City." She said the last part quietly.

Atollon City had probably the highest crime rate in all of Japan as well as the most Mysterious Being appearances. There was also a small number of Pro Heroes there as most went to large cities in order to pursue fame and glory instead of sitting around in an almost isolated city. The police were also short on manpower in the area.

It was not a place she wanted to raise her child in, but they had no choice. She just hopes that they will be safe until she finds a job at a better location.

~8 years after moving~

 

 

"Well, aren't you going to run?"

A massive, muscular figure stood in front of Izuku but he didn't run. In fact, he looked almost tired.

A few minutes ago this man was wreaking havoc and killing people but Izuku was standing there indifferent. 

"Are you suicidal or something? Did bullies get to you so bad that you just want to die or something? You know, like in those crappy TV shows?" He asks curiously.

Izuku shrugged and answered, "I guess so, but there's also one thing. I'm Quirkless." This cause the man to raise an eyebrow, "Even if I ran you would catch up and I'll die anyway. Almost nobody would care if I did die anyway. What's the point?"

The man snorts and slaps him away, his body flew for a minute before hitting a wall.

"Well, you're the most boring person I've met in a while." He commented before resuming his route.

Suddenly, two people dressed in red life jackets and white helmets jumped in front of the man.

"Hey, its Water Hose!" One civilian shouted as he recognized them, "They're Class-A Heroes!" Everyone began cheering, finally, the villain would be defeated.

"Muscular, villain with a Class-A bounty and Threat Level: Tiger! You are under arrest for battery assault and murder of countless civilians and heroes alike. Surrender now!" The male Water Hose commanded.

Muscular's interest peaked slightly, "Oh so you know me. But there's something wrong about your info." Suddenly muscles started to appear and cover his arms. "I'm not Tiger anymore. I'm more like Demon now!"

The male Water Hose then fired a stream of water at his face while the female one used water from a fire hydrant to target the villain. Muscular just blocked the attacks with a muscle coated arm and charged at them with surprising speed, swinging his other arm. Luckily the heroes dodge the attack in time. Barely.

Izuku watches the fight from where he was slumping on and even from there he could tell who was winning. Water Hose was a hero duo consisting of rescue heroes and although the do battle villains they had less combat experience than most. Muscular on the other hand was a full-on combatant with overwhelming speed and strength.

Soon he was proven right when Muscular landed a punch on the female Water Hose, then grab her leg before swinging her at a lamp post. He could hear the sound of bones breaking from his location. The male Water Hose shouted in rage at the sight of his wife's state and fired a strong, continuous stream of water only for it to be largely ignored. 

"Come on show me your blood!" Muscular commanded and smashed the male Water Hose's helmet. He continues to toy with and taunt them.

'What should I do?' Izuku thinks, 'No, I can't do anything...It's like they said. I'm useless, I won't be able to do anything.'

"You're just a Quirkless hero wannabe."

"It's sad he can't differentiate dreams from reality."

"You should just give up."

The male Water Hose spat out blood as he received another punch from Muscular, "Damn you." He mutters.

Muscular just sighs, "Done already? Jeez, the quality of Heroes has been falling haven't they? At least you lasted longer than her." He gestures to the unconscious form of the other Water Hose.

"I'll kill you for what you did to my wife." He shouted hoarsely as he raised his arm weakly.

"Come on, show me more blood!" And he launches another punch, this time to finish off the Hero...

Only for something to tackle him out of the punch and causing it to hit the road instead.

"What?" He said confused, he turns to see that the kid he had knocked away earlier had tackled the Hero out of his way.

"Oi, what's the big idea brat? Trying to save them?" He taunts.

The male Water Hose coughs, "Kid...run, he's after me and her." he begs, "Run."

Suddenly they heard a small laugh coming from Izuku.

"Did you just...laugh?"

"I just remembered," He said between laughs, "You look like a villain in an old anime I used to watch."

The response was met with a muscled fist to the face and was once again sent flying.

"Now where were we?" Muscular said as he approaches the fallen heroes, only for a rock to hit the back of his head. He turns around to look at the perpetrator. It was the kid, somehow still standing and conscious.

"Wait..." he squeezes out weakly, "With crime rates high and monsters appearing more frequently I can't just let you kill them." He rips out his uniform's sleeve and wraps it around his hand. "And there's another thing I remembered. I always wanted to be a Hero. A Hero that sends villains like you flying... in one punch!" He shouts defiantly, "BRING IT ON!"

This caused Muscular to smile, "Now that's interesting." 

He went over and punch Izuku multiple times, "You got my attention now kiddo! Now show me your blood." After a few punches, Midoriya was lying on the ground, bleeding heavily with tons of broken bones.

"You're too weak kid, more than those Heroes. You've been fun to play with but I gotta hurry up." He turns away from Midoriya and went back to the Heroes. "Sorry about that, I almost forgot to kill you."

Suddenly he felt something wrap around his throat and start strangling him, surprised he tried to tear off whatever was doing it and to his shock...

"YOU AGAIN?!" This was surprising, he had landed some pretty weak punches on the boy but to see he was still alive and kicking surprised him. Then something hit his eye, he never felt that much pain before and screamed then tear off the boy from his back. Once he had done so he reached and touch his eye, only to find it missing and saw blood coating his hand. Suddenly he felt dizzy from the blood loss.

"You son of a-." Then he saw a group of Heroes approaching, one of the Water Hoses or the civilians must have called them. He had to retreat, he can't fight in this condition.

He started running but not before sparing a glare at Water Hose and the kid.

~Flashback Over~

'Ever since I got out of the hospital I began training so hard that I got overwhelmingly strong and now I have the abilities needed to become a Hero. I did some occasional taking out monsters and villains while training too. So why do I feel unsatisfied?"