(Hey, just a quick thank you to anyone who reads this. Also, this version of the shape is created with the idea that there is no real confirmed single reason Izuku kills, just a mixture of popular theories and ideas from the movies, games featuring Micheal Myers, and the novelizations. That said, please enjoy.)
The town of Musutafu was a quiet, peaceful place. Halloween night was no different, even if six year old Izuku Midoriya couldn't get his babysitter to take him treat-or-treating.
Izuku was an odd child. He had no quirk, no special power in a world of special powers. He pale, his eyes so green they were almost black. He could talk but chose to stay mute. But just because he was odd, it didn't mean he didn't like Halloween or normal kid stuff. He was just a little different.
Holding up the bright orange pumpkin pail, dressed up as All Might, down to a smiling mask on his face, he looked up at his babysitter, a sixteen year old girl named Risa Kaji, who just laughed before berating him.
"No, you quirkless little creep. I'm bringing my boyfriend over, and if you tell your mom, I'll tell her you were doing bad things on the computer." She told him, smirking as Izuku looked down, ashamed and angry with her. His mom had told her to take him trick-or-treating.
Being quirkless was hard enough. He had no special power. He was just a normal kid. But the one night of the year a kid was supposed to dress up and be special, he was treated like a burden. Like a monster.
All he could do was ball his little fist, go to his room and sulk, and wait for her boyfriend to arrive. He'd never actually met Risas boyfriend, but he knew he had time to go out by himself when he arrived. Tonight was Halloween, and he was just another kid dressed up.
Outside the apartment, he went up and down the halls of his home, gathering candy in droves. This was his night.
Once his pail was full, he went back home, hearing his babysitter making those weird sounds she always did when he boyfriend was over. Izuku had to wonder what they were doing. Was it fun? It sounded fun.
Curiosity was a strange thing. Izuku knew he wasn't supposed to leave his room when her boyfriend was over, but he wanted to know what they were doing.
Sneaking out of his room, he walked to his mother's room, where the sounds got louder, the door cracking open just a bit, enough he could see Risa underneath her boyfriend, making weird sounds.
Intrigued, Izuku kept watching, confused, until Izuku walked away before he could be caught. He could see a weird cut thing in Risa before he left. Why was cutting her so nice?
Maybe if he cut her too, Risa would be nicer and take him out to get more candy.
Grabbing a knife from the kitchen, he waited until her boyfriend left and snuck into his mother's room, sitting at his mother's vanity dresser and brushing her hair, wearing no clothes.
Almost like she could sense the young boy, she turned, covering her chest quickly.
"Izuku?" She asked, staring at him as incredulously as he lunged forward, the knife moving into her chest, Izuku pausing for a moment before pulling the knife out, the back in, out, in, out, just like he'd seen her boyfriend do.
She puts her hands up, but he doesn't notice, slashing at her now, careless and wild, until she went limp, and Izuku stared, breathing heavily in his mask.
Walking outside, called by something, he stood there on the sidewalk, knife in hand, until his mother arrived.
"Izuku?" She asked, taking the mask off his face, a disturbed look on his face while heroes yelled from close by, police sirens rising in the distance.
Ten Years Later_
Izuku had been locked away for so long at Kiyoka Mental Reformation Center that the light in his eyes seemed to die.
His mother had visited for some time before she seemed to give up on him, leaving his only visitor, Dr. Shinji Tamaki, Izukus' psychiatrist. The man who told him he was evil every day. That he had the devils eyes.
He was being moved to a jail in Musutafu, so tomorrow, he could plead his case before a judge. But he didn't speak. He didn't move most of the time either, even when they moved him outside so he could get fresh air.
They'd been driving for a few hours now, and Izuku knew what would happen if the doctor was there at his next state physical. He'd be drugged, hardly able to sit up. Well, in that case, Izuku was better off without the mental center and his doctor.
A flash of lightning struck the road, the bus driver in his panic running them off the road, flipping over on its side.
In the confusion, Izuku pulled at his chains and heard them snap before using his shoulder, tackling the guard next to him against another inmate, beating his face in until he stopped moving.
Kicking the emergency door open, Izuku stepped out of the bus and stood a moment in the rain before making his way to the woods, waiting for a car he knew was coming, and jumping on top of it, hearing the nurse inside scream.
Doctor Tamaki got out, aiming his gun at the top of the roof and finding nothing. Izuku had no time for games, getting in the car and speeding off at top speed.
"No! No, the devil is loose tonight!" He heard Doctor Tamaki scream, shooting at the car, missing it in the darkness.
Furanku Auto Shop outside the city_
Stopping at an auto shop, Izuku could see one man working late, wearing a blue jumpsuit that looked like it would fit better than the hospital gown he was wearing since his escape, hitting the man and pinning him to the wall before getting out.
"Please, help me." The man begged, watching Izuku stare back for a moment, before taking a screwdriver screwdriver and stabbing it through the man's head, watching him crumple onto the car before Izuku backed the car up and took his clothes, putting them on and standing, feeling better as he tossed his gown on the dead mechanics lifeless body.
Musutafu_
Izuku broke into a hardware store, seeing the date on the calander. October 30th. But he knew it was late enough to call it. He could feel it. Today was his day. Halloween. But he had no costume.
Thank goodness for the white mask the store was selling. It's blank stare and brown slicked back hair, making Izuku feel better. It wasn't his All Might costume, but it was something.
So, stepping out onto the night, he began walking to his old apartment. Maybe his mom would be there. She could make katsudon. He missed katsudon. He missed his mother. She was the one person in his life who loved him unconditionally. Her not coming to see him wasn't her fault. Izuku didn't want to be there, so why would she?
Walking with a mask wasn't too strange. Plenty of heroes did it. The world was strange these days, and no one paid him any mind as he walked up to the apartment he'd once lived in.
The locked door didn't stop him, simply pushing on the doorknob until he heard it fall to the floor and could push the door open, walking inside and shutting the door behind him.
It was decorated differently than he remembered, but Izuku paid it no mind, simply walking to his mother's room and finding two people, a man and a woman, he didn't recognize laying in the bed.
Narrowing his eyes, he looked around the room. There were no pictures of him or his mother. The apartment wasn't what he remembered because his mother had either died or moved. She'd abandoned him.
Walking to the kitchen, he grabbed a butcher knife, the sharp blade perfect for what he would do to those two who had invaded his home.
Taking a pillow, he smothered the woman, waking her up, her arm flailing around and waking the man beside her.
"Get off her, you creep!"
He began hitting Izuku, but he was weak, and Izuku simply pushed him off with one hand before turning and grabbing the man by the mouth, silencing his screaming, taking his other hand and crushing the man's skull in his hands before turning to the now sobbing woman.
"No! Please, I'll do anything!" She begged, taking off her nightgown, showing Izuku her body. So she wanted to feel what Risa felt? Okay. He could do that. He liked making people happy like that.
Taking the butcher knife from his pocket, he approached the woman, grabbing her arm as she tried to run, swinging butchers blade down, right through to the other side.
Izuku had a good idea. If she liked that, he could use her arm too. It was brilliant, and the scream she made only fueled his desire, beating her with her severed limb, until she lay on the floor, moaning weakly. It was fun, it always was, and bringing his boot down in her head, he heard it crunch in a way that he knew she had to be as happy as he was, before picking up her body and setting it on the bed, proud of his work. There was one thing that could make this better, and since all Izuku had was time, he left the apartment to go get it.
Musutafu Graveyard_
It took little time to find what he was looking for, the headstone of Risa Kaji. His first. Someone special to him now.
Kicking the headstone out of place, he carried it over his shoulder and back to the apartment, setting it right up at the head of the bed. Now it was beautiful. He'd made the act even more intimate with his partners, putting the man up on the bed next to the woman.
But now there was nothing here for him. He'd come to see his mother, but she wasn't here. He wondered if she was still in the city.
Taking the butcher knife and piercing the man in the side, he laid between hid partners, falling asleep. He'd need plenty of energy for Halloween tomorrow. Maybe he could still get candy, even if he was a teenager now.
The thought soothed the quiet teen to sleep, who, like every night, slept restlessly, haunted by visions of a teenager, Enda, a deformed looking young man. From his time spent pining for the princess, Deirdra, to watching him kill both her and her betrothed, all the way to him being cursed by a shaman, forced to walk the earth, reliving his atrocity forever.
The dream always ended there, Izuku sitting straight up, his arms limp by his side, like the dead coming back in a zombie movie. Izuku always thought it looked cool when he did that. Plus, it was like a little workout right in the morning.
Getting up, he realized it was early, heading out of the apartment and walking down the streets, finding most everyone either heading to work or shopping, since today was Saturday, and Halloween didn't have to wait until after classes.
It was here he saw a girl, beautiful and kind looking, with warm chestnut brown hair styled in a bob that ended just above her shoulders, her short bangs parted slightly to the side, her friendly, energetic features highlighted in a way that made Izuku feel strange.
He wanted to kill her, but not like the others. He wanted to taste her fear, to make her afraid, and then, and only then, could he have her. He'd mark her as his ultimate partner.
Watching her from the streets, he hid behind an alley wall as she turned and got into the car he'd stolen. From now on, all he wanted was her, so he stalked her, driving behind her and her friends, a girl with long arms and green hair, and another with bright pink hair and skin. They would make great warm ups for his dream girl.
Speeding by them in his car, he heard one of them, the pink one, yell at him.
"Hey jerk! Speed kills!"
Izuku hit the breaks, his desire to kill the pink one almost outweighing the fact that to build suspense would only make it better. But still, he sat in the car, breathing heavily in his mask for a moment, until he drove away.
Taking a deep breath, stalking them from afar, Izuku watched as they walked into a high school. One he knew from childhood. U.A. had the best security, it had to be the best hero course school. So, his ultimate partner was going to be a strong hero? What a lovely time he'd have with her. But not yet.
He needed to warm up, and besides, while he was sure he would be able to walk right into the school, he needed to make her paranoid of him.
So he watched from afar, looking around the outer walls of the school, finding the weaknesses he could exploit later, once the sun went down, when it was time for the festival to really begin.
Until then, he waited in the home in the nearby village, snapping the neck of the elderly owner before spending his time researching the students of U.A. on the computer. Because of the sports festival, he got to learn her name and see the quirks of the students who would likely cause him issues in action.
Not that he minded. Ochako was strong enough to fight a boy he recognized from childhood, Katsuki, not to a standstill, but still, she would be a challenge if she could keep her wits about her while he was on the hunt.
As the sun began to set, it was time to start his game, grabbing extra knives from the old man's kitchen and watching the grounds of U.A., spotting a dog hero patrolling the perimeter. He was sniffing the area, meaning his sharp sense of smell was both his greatest strength and weakness.
So Izuku spent a few minutes mixing cleaning chemicals under the sink into a portable plastic bottle before walking the perimeter, waiting for the hero to sniff him out. Oh boy, this guy was going to be a real challenge. A hero, like the ones he wanted to be like as a child.
The sounds of cracking twigs and leaves told Izuku he wasn't alone, waiting until the hero was close before taking a deep breath of fresh air before throwing the bottle on the ground and smashing it under his boot, a cloud of neon green gas spreading out quickly to envelop the both of them before Izuku punched the hero in the stomach, making him gasp in pain and suck in the gas while Izuku moved away and watched the dog man swallow more gas as he gasped in pain, the chlorine gas mixing with the water in his lungs, making acid and dissolving his lungs.
Izuku just watched for a moment before grabbing another full breath of air and walking into the cloud, grabbing the hero by the ankles, and cutting his Achilles tendons.
This was new. He'd never killed a partner without using just brute force, but watching him gargle up blood and bits of lung flesh was interesting. Now he'd die here, all alone, Izuku covering him halfway in leaves before walking away, closer to his true prey.
Before anything, Izuku had to give himself the edge. These were heroes in training, and most likely, teachers who were heroes. That meant cutting the main power first, the screams of surprise signaling that he was on the right track, walking right into the first year dorm. He knew she was here. It was like a little voice was guiding him.
Walking through the common area, he found a couple, a redheaded guy with spiky hair and the pink girl who'd yelled at him earlier, on the couch, taking advantage of the power outage as they made love.
Izuku watched for a moment before stepping forward and plunging his knife down into the man's chest, his scream of pain growing as the knife twisted before being pulled out as he looked at the now terrified pink girl, tilting his head to the side as she tossed liquid at him, getting it on his arm.
Stepping forward, he felt his arm burning, but it didn't matter, approaching the girl as she backed away cautiously. She was fast, but Izuku moved into the shadows, his heavy breathing almost echoing in the darkness as the girl continued to back away, before coming to her sense and screaming for help, right before backing into Izuku, who began to stab her in the lower back, her screams of pain and terror slowly quiting until she fell limp at his feet.
He only had seconds, but still, he moved her back to the couch and set her onto her now dead lover, making it seem like they were still in the act of lovemaking before slipping out sight as someone came down to check on them, a tall teen with blue hair and square glasses.
Izuku didn't like his face. He seemed so serious, and watching him lecture the two corpses for being too loud before realizing something was wrong and checking on them, screaming in terror when he found them dead, throwing up behind the couch as Izuku walked up, grabbing the boy by the mouth from behind to silence him.
Izuku felt teeth sink into his hand, but he simply grabbed his head, twisting it to the side hard as it cracked hard, staring at the crumpled boy on the ground, his eyes moving in terror, the only thing that moved as Izuku dragged him into the kitchen, pulled the microwave down from the counter, and punch the front screen out, placing the crippled boys head into it and turning it on, walking away as the smell of burning hair and flesh emanated from the boy.
Up the stairs, following the signs, he ran into a man. Not a teenager, but a grown man who'd used the shadows as good as Izuku had. He was too old to be a student, so he must be a teacher.
"Who are you?" The man asked, pulling down a pair of goggles as his hair rose, Izuku walking forward with silent determination. A real one on one with a U.A. teacher, no, a hero? He would be Izukus best partner yet.
The man was fast, a cloth covering Izukus arm before he pulled him forward. What kind of scarf was this strong, and who wielded one like this?
There was no time to question that, Izuku getting his footing and pulling the man forward, his scarf coming off as Izuku drops his knife, his breathing heavy as the two stare at one another for a moment, before Izuku walked towards him.
"Who's blood is on your clothing!?" The hero screamed, quick and smart, while hitting Izuku, never staying in one spot long enough that the serial killer could get a good hit on him.
But Izuku was smart, fast, and could take a beating. He'd taken a few in the mental hospital before he'd killed anyone who crossed him. That boy who ate his birthday cake deserved it the most.
So while he was getting beaten, he was watching the man, learning his fighting style, how he moved, grabbing the heros arm. But the hero had made so much noise that in the few seconds between screaming about the blood on Izukus clothes and getting caught, doors opened, and the student who wasn't out celebrating stepping out of his room.
"Get inside, go out your windows! Alert all the staff about what's happening!" The hero screamed, grabbing a knife from his belt and aiming at Izukus shoulder, getting it in there with precision, his student looking on in terror.
It hurt in a way that made Izuku appreciate this partner more than anyone else besides Risa, pushing the man's elbow until it snapped and taking the knife out of his shoulder. This one was much nicer than his other one.
The hero cried out in pain, and Izuku made to end him before a purple ball was stuck to Izukus boot. Izuku saw this in action during his sports festival footage. He knew what this was. And he knew how to use it.
Stomping on the ball, watching it squish under his boot, he stared at the terrified midget who'd throw it at him.
But before he could handle the midget, there was an injured hero in front of him and a knife in his hand. First, he grabbed the man by the head as the midget threw a barrage of purple balls, using the hero as a shield as he moved towards the midget, the hero using the strength in his good arm to try and fight back, before Izuku decided enough was enough, and began bashing his head against the wall until he went limp, crushing his chest under his foot.
Now staring at the midget, he tilted his head to the side, breathing heavily as he bent down, picking up the scarf the hero had used briefly, before tossing it around the running midgets neck, and and pulling him back, hearing a snap. What a weakling. How could he expect to ever be a hero?
If Izuku was anything, he was an artist, hanging the midget from the wall by his sticky hair, turning to where the hero should have been, and finding a missing man. How was he still alive? Izuku had heard his ribs crack, beat his head in, and broke his arm. Bit still, he kept the scarf, wrapping it around his neck.
Not that it mattered. He could kill his beautiful partner and then leave.
He listened to his gut, following it downstairs and up a separate set of stairs, to the fourth floor, Izuku shaking the locked handle. She was in there. He could feel her fear. So he began beating on the door, over and over, until the door began to give, and then broke, Izuku walking in.
He saw no one as he flipped the bed, checked the bathroom, the closet, and even the drawers, staring at her underwear for a moment before slamming the drawer shut, a terrified whimper coming from behind him. Finally.
Turning slowly, he saw the girl floating up on the ceiling, holding a wire hanger, which she used to pierce his eye, Izuku stumbling around in pain while the girl started to make her escape. He was bleeding freely now, more than being burnt by acid or stabbed in the shoulder. He was angry now, pusing the pain away as he caught the girl by the arm, and she grabbed his mask, Izuku letting go to cover his face.
She took the opportunity to run the only direction she could, the next room over, locking the door and moving things against it while Izuku put his mask on, and went to the door, kicking the door, over and over, with more force than he did last time, the door breaking quickly and Izuku working on throwing the furniture blocking him, watching she slide open the balcony window and get ready to jump.
A knife was stabbing into Izukus arm, the killer turning to the hero he'd fought earlier and simply eviscerating the man with his own knife, watching his guts fall out before tying the scarf around his neck, wadding through broken wood as he dragged the corpse to the balcony, hanging the hero with his own weapon, before he heard a sob, and she touched him, using her quirk.
Izuku began to rise, higher than any normal man could survive, and then fell, Ochako dropping him back against the balcony.
Laying there a moment on his back, he heard her sobbing, taking a few seconds to rest before sitting up silently and preparing to stab her, his knife raised high before bang! Bang! Bang! Bang! Bang! Bang!
Doctor Tamaki used his gun, six shots ringing out, the last one sending Izuku over the balcony, where he rested on his back again, this time hardly able to breath, the pain too much to just get up and go this time.
"It was the boogeyman." He heard his lovely Ochako speak, sitting up and getting to his feet.
"As a matter of fact, it was." Doctor Tamaki told her, and Izuku began to use the shadows to escape, knowing if his kookie doctor was here, the police would be soon, and too many bullets would mean he couldn't keep going. But he did hide in the darkness long enough to see Tamaki looking for him, the fear etched on his face giving him satisfaction before he left, escaping into the night, only his heavy breathing giving any sign he's even alive.