Izuku panicked when the Sludge-thing entered his lungs. He couldn't breath he couldn't breathhecouldn'tbreath- did he even need to breath? And like that, the pain for air stopped. "Huh. He's stopped struggling." the monster stated. Izuku proceeded to lock his body in place. "What the?! MOVE DAMN IT" the thing yelled. Izuku proceeded to try something new. He began to shrink his lungs. This lead to many surprised curses. And then…

"TEXAS SMASH!" The villain disintegrated around him. Izuku looked up and- 'All… Might?' he thought before he passed out.

"HEY! HEY! HE-" Izuku woke up to the feeling of someone slapping his cheeks. "ARE YOU ALL RIGHT?" He looked up and…

"ALL MIGHT?!" he screamed, backing up quickly. "SORRY FOR DRAGGING YOU INTO THAT FIGHT MY BOY!" he shouted.

'T-the #1 Pro Hero All Might!' Izuku's brain was stuck on that. 'Autograph… need to find something for him to sign… notebook!' he opened to a blank page only to find - 'HE ALREADY DID!' he mentally shouted. "THANK YOU THANK YOU THANK YOU!" he shouted, bowing so fast he was a blur.

"OK!" All Might said. "NOW THEN, I'LL TAKE THIS VILLAIN TO THE POLICE!"

"A-already?" Izuku asked.

"PRO HEROES ARE ALWAYS NEEDED! THEREFORE I MUST GO!"

"Wait… wait! I still have questions!" Izuku said.

"SEE YOU!" All Might shouted, before leaping into the sky.

'That's weird… I feel a weight on my legs…' All Might thought to himself. Turning around he saw that kid holding onto his leg! "HEY HEY HEY HEY HEY HEY! YOU'RE INSANE YOU HEAR ME! LET GO NOW!" he shouted, trying to pry Izuku off.

"Bu-but if I do I'll die!" Izuku responded. He actually wasn't sure if he would. It was a possibility though.

"OH… RIGHT." All Might said.

"T-there's so much I w-want to ask you about!" Izuku shouted.

"OK OK! JUST CLOSE YOUR EYES AND MOUTH!" he shouted. Izuku did so. He patted the boy on the back and then he coughed. 'Shit' he thought to himself. Meanwhile Izuku was wondering where the scent of blood came from.

They landed on an apartment building on the other side of town. "T-that was terrifying." Izuku wheezed out, trying to regain control of his legs.

"Good grief." The people in the building will be able to help you down." the Pro Hero said, calmly but in a stern tone.

"W-wait!"

Izuku called. "NO! I SHALL NOT!" The Pro shouted, obviously preparing to fight another villain.

"I-Is it possible to become a hero without a Quirk?!" Izuku shouted at the top of his lungs.

"W-Without a Quirk?" All Might said, as if he had to think deeply about that. And then All Might felt it. 'Oh no! Not here! Not now!' he coughed hard. And then the steam started to rise.

"Maybe because I'm Quirkless, I'm always made fun of... " Izuku lied. He hated doing it, but what choice did he have? 'Hey I have a Quirk that makes me eat people?' Yeah that'd go over well. And why was it going haywire? Why did it sense weakness? Why did it sense prey? All Might was the only one next to him, and he wasn't' anything of the sort! He shook the idea of prey out of his head. The last thing he wanted was to see humans as food! "That's probably why I find the idea of saving people really cool..." 'And because I'm a monster.' "I want to be like you and save people with a fearless smile…" 'Can I ever be able to save them, or will I eat them by accident?' "That's why I want to be the greatest Hero, like you!" he finished, looking at his idol. He noticed a lot of steam, and wondered where it came from. Then it cleared… revealing a frail man. "WHHHHAAAAAAAAATTTTTT?!" he shouted in shock.

"You're DEFLATING?!" Izuku shouted. "A-are you a fake?! You're so skinny!" He continued. The frail man who was all might sighed.

"I am All Might. You know how people flex at pools? It's like that." And then he gushed blood from his mouth.

"WHHAAAA?!" Izuku shouted, both out of shock and to keep the tendrils from seeking fresh meat.

"Young man, now that you've seen me like this, please don't tell anyone. Don't post about this online, even accidentally." He then lifted his shirt, showing what looked like the impact zone of a giant bullet. "Five years ago I was badly injured by an enemy of mine. Half of my respiratory organs were destroyed. My stomach was also completely annihilated. I've become emaciated from repeated surgeries and the after effects I can only work as a hero for three hours a day. After that" he gestured to himself.

"F-five years ago?" Izuku asked, desperately trying to force down the feeling of his back beginning to bulge. "Is that when you fought Toxic Chainsaw?"

All Might grumbled at that. "That punk couldn't have defeated me!" he growled. "The fight that did this was kept from the world, as per my request. I will still save people with a smile! I, the symbol of peace, cannot be daunted by evil! I smile to show the pressure of heroes and to suppress the fear within me. Pros like me are always risking their lives. Therefore, I cannot say 'you can become a hero without powers'". Those words slammed into Izuku like a cinder block.

"I-I see…" he choked out… now finally beginning to prevent his feeding tendrils from showing up.

"If you really want to help people, why don't you become a police officer? They're often teased for getting villains hand-delivered to them, but it is still a worthy occupation." He paused just before entering a stairwell. "It is good to dream, but remember what is realistic." he said as a parting.

As Toshinori walked down the stairs, he contemplated the situation. "Maybe I was a bit harsh, but that's the way of the world. Also, why did he look familiar? It's like I've seen his face somewhere before… Ah, I might've seen him at a signing booth or something. Now then, I have to get the sludge thing to the police soon-" He paused as he reached into his pocket and found nothing. "What? Where is it?" he asked himself, as he looked around. And then he saw the plume of smoke. "Damn it… when the kid grabbed me I must of dropped it! I was careless!" he said to himself. He then quickly ran to the scene in his 'deflated' form. He'd have to use that. He soon arrived at the scene. He saw Death Arms and his pals fighting against the sludge man. 'Damn it escaped!' He then overheard the people talking.

"It has a child as a hostage! Why aren't the pros doing anything?!" That chilled his blood. 'I'm pathetic' he cursed at himself.

Meanwhile Izuku was looking through his notebook. He stopped on the page with All Might's signature. His words kept going through his head. 'It's good to dream, but remember what is realistic'. 'Even a pro said it… I can't be a hero without a Quirk… and mine is just evil... ' he wiped tears from his eyes. 'Shut it! You already knew this!' another part of his mind said. 'Well, Dad'll be happy…' he thought to himself. His father was away on a business trip, and he had been for five years. He still checked in by call or text whenever he could though. 'Maybe I should tell him when I get home' he thought. And then he saw the sludge monster. 'SHIT! How'd it get free?!' And then he remembered. He had knocked the bottle out of All Might's hands… 'This is my fault…' he thought.

"Where's All Might?!" He heard one of the civilians shout.

'Damn it… this is my fault… I wasted his time…' Izuku thought to himself. An then he saw who the hostage was. "KAACHAN!" he shouted.

Katsuki screamed in anger and slight fear. 'Someone, anyone, DO SOMETHING!' he screamed in his mind.

"Kaachan!" he heard Izuku shout. 'SHIT SHIT SHIT! I take it back! Anyone but HIM!'

"Hey! You! I'll get you this ti-WHAT THE FUCK!?" this last part was because of the fact that Izuku had spouted those god-awful tendrils from his back.

"Let him go!" Izuku shouted, fists clenched.

"Or what?" the slime villain mocked. "Who's that?" someone shouted. Izuku glared.

"Please don't make me use this." he pleaded.

"HA! Your little decorations don't scare m- WHAT THE FUCK ARE YOU DOING?!" the villain shouted as Izuku buried the tendrils into him. And then Bakugou saw the villain being… consumed by the black wriggling mass that spread over it. It detached that part of itself, which then became nothing but a black fluid which was greedily slurped up by the tendrils.

"Last chance. Let." Izuku's teeth elongated. "Him." Black and red spines grew out of his back, rippling like a set of waves. "GO!" and then his hands became fucking CLAWS. The villain rushed away from him, leaving Katsuki on the streets coughing.

And then All Might appeared. "Even though I admonished you… I DIDN'T PUT IT INTO PRACTICE!" he declared.

"All Might!" the sludge villain shouted.

"PROS ARE ALWAYS RISKING THEIR LIVES!" he screamed, blood pouring from his mouth. "DETROIT… SMASH!" he declared, vaporizing the villain. The force of the punch was so powerful that is caused a great gust of wind. If it wasn't for Mt. Lady the other pros would've been blown away. And then it caused a temporary tornado! The pressure change then caused clouds to roll in and then it started to rain.

"HEY! With a single punch All Might changed the weather!" a bystander shouted.

The after effects were predictable. Izuku was scolded by the heroes and law enforcement officers, save a rookie cop named Kitani, who was arguing with her superior, while Katsuki was praised. But he ignored it. 'Some help you all were' he thought to himself. He turned to look at his friend (he scared the absolute crap out of him but they were still friends) 'Why aren't you praising the person who actually did the work?' he thought.

Later that day Izuku was walking through his neighborhood. 'I never got to apologize to All Might for wasting his time and lying' he thought to himself. 'Maybe I'll post it on his website.' Now his thoughts drifted to the use of his Quirk. He shuddered at how satisfying it was to feed off of the villain, how full he felt, and how it mutated. 'Those claws weren't there before.' he thought. 'Is it that I become stronger the more I consume?'

"DEKU!" It was Kaachan. Now, most people would assume that he was being mean. However, it was an agreement between the two. Izuku could call him 'Kaachan', while he could call Izuku 'Deku'. He had stopped running and was panting. "I just wanted to say thanks." he said. "And also… please don't do that again. I'm gonna have nightmares again…"

"S-sorry." Izuku stuttered. He knew Kaachan didn't like his Quirk, and he knew of the nightmares it caused him. It was one of the reasons he never tried to show it. He had had similar nightmares, although he was pretty sure that the views were different, as his involved watching himself devour everything. His friend waved goodbye before walking off. 'Now then. I need to think of a realistic future-'

"I AM HERE!"

"A-All might?! B-but you were surrounded by reporters!"

"HAHAHA! IT'S ALL TOO EASY FOR ME TO GET AWAY FROM THEM! WHY? BECAUSE I'M ALL MIGH-Blegh!" the last part was because his form dropped back to his deflated mode and he coughed up a lot of blood.

"AAAAAHHHH!" Izuku screamed. Thankfully the feeding tendrils didn't show up, probably because of the meal he'd just eaten.

"Young man, I came for a few reasons. First of all, thank you. If you hadn't spoken to me, I'd just be a guy in a bodysuit who was all talk."

"I-it was my fault…" Izuku stuttered. "I got in your way because of all of the things I said…"

"And that brings me to the second reason. Why did you lie to me?"

"W-what?"

"I saw your Quirk. It was rather impressive." All Might said, disappointment written all over his face.

"It's not impressive." Izuku stated to the ground. "All it can do is kill. You saw what it did. It devours people. Whenever I smell blood -and I can smell it now- I have to force the feeding tendrils down."

"Feeding tendrils? Is that what they're called?" All Might asked.

"Y-yes."

"And you knew you had this Quirk before?"

"Y-yes. I'll tell you how it was activated. When Kaachan -the kid who the Sludge monster was holding hostage and I were kids, we got lost exploring the city. And then a man offered us help. Of course, we knew not to talk to strangers, so we shook our heads. And then he lunged at us and grabbed us. Kaachan-I mean Katsuki, has a Quirk that allows him to sweat a Nitroglycerin-like substance, only it's a lot more powerful, so he can make explosions. At the time, he could only make things the size of party poppers. So they didn't help…" He trailed off, thinking about that fateful night...

The man held onto them both and he wouldn't let go! Kaachan was bound and gagged, screaming under his gag, tears filling his eyes. Izuku backed away into the street wall. "Now that your friend's bound, I'll just start with you." The obese man chuckled, removing his belt.

Izuku began to scream. "HELP! ANYONE! HEL-" and then that fat man pressed a greasy hand to his chin under his mouth.

"YES! Scream! I love it when they scream!" He grabbed Izuku by the hair and dragged him to his van.

"LET ME GO!" Izuku shouted as he futility struggled.

"Stop shouting! It's not like anyone will hear you! My Quirk stops all sound around me!"

"LET ME GO LET ME GO LET ME GO LETMEGOLETMEGOLETMEGO-" Izuku felt his back begin to hurt. "GETOFFGETOFFGETOFF!" the man laughed and tossed Izuku to the ground.

"Now then, let's begin" he sneered, beginning to take his pants off. Izuku screamed both from fear and and the pain of his back ripping open.

"Oh God-" the man gasped. And then Izuku looked behind him and saw it. Four black tendrils, each wriggling and covered with spikes at the end.

Katsuki saw the man pause before he got to Izuku and then he saw those THINGS appear. The man screamed in shock. And then four squelching sounds rang out, one after the other.

Izuku didn't know what was going on! The four tendrils impaled themselves in the man, and then he started to MELT. He screamed in agony as he dissolved into a black substance. And then, before the substance could lose his shape, a sound like dry grass rang out and he dissolved into the tendrils. Izuku felt the tendrils retract into him. And then the memories hit. He saw the man claim his first victims, what he did to them, and when he put them out of their misery. He saw him evade capture for years. And then he saw himself consume the man. And then it was over. He sat there for a few minutes, gasping as the memories slowly faded from his mind. The last thing he remembered was seeing a police officer radio in for backup before darkness took him.

"And that's what happened." Izuku finished, swallowing the bile forming in his throat. He didn't want to think of how good it felt to consume, to feed, to devour that man.

"It doesn't matter what Quirk you have. Do you know what every great hero has said about their first rescue; their first heroic act? Their bodies moved on their own. And I'm positive you had the same feeling." Izuku fell to the ground, tears in his eyes. "You can be a hero." All Might finished. To hear that, that no matter how evil his Quirk was, All Might believed in him, was something that made him cry out. A massive weight was lifted from his shoulders. And this was how Izuku Midoriya started down the path to become the world's greatest hero.

The Sludge villain was left in a small box in a holding cell. It wasn't comfortable. "That green haired brat… DAMN HIM!" he shouted. "When I get out of here I'll take over his body and use it to kill his mother! But before I kill her I'll rape her! And then when I've broken her I'll slit her throat and set their house on fire! And then-" he stopped his ranting when he felt a presence. It was incredibly powerful and incredibly evil. It felt like something was choking out the sun, leaving the world in perpetual darkness.

"What was that you said you were going to do to my wife, with my son's body no less?" a deep, almost mechanical voice coldly said. The Sludge villain rotated his eyes towards the source. It was a tall man with a black mask on his face.

"W-who are you?! How did you get in?!" he yelled.

"I simply invited myself in."

In the station, all of the police officers were in varying states of injury. The only one that wasn't was hyperventilating. "Focus Kitani," she said to herself as she slunk towards an emergency phone. "This is Kitani Rikiya. We have a high-powered intruder!"

"Can you give us a description of the intruder?"

"Well, he had a giant black mask over his head…"

"As an answer to your question, I am Hisashi Midoriya, the father and honorary uncle of the two young children you tried to kill. I don't take kindly to those threatening my family." The man picked up the box. "Now then, I'd love to chat more but I have places to go, you to torture, a son to call, and a student to tutor." With that he vanished in a cloud of black smoke, taking the caged villain with him.

AN: So yeah, Izuku has Blacklight and AFO as his dad (I'm a huge fan of the theory BTW) He won't be able to do pretty much anything Alex or Heller could do yet, so as to not make him OP right off the bat. He'll get stronger the more he eats though.