u/piss_man7843

Izuku is born with an odd quirk. At will, he can summon a knife that's... REALLY GOOD at cutting stuff, able to cut through damn near anything with one slash. It's extremely durable, and always stays at peak sharpness. But aside from that his quirk doesn't really do anything. Until one day, in a fit of fear and frustration at Kacchan being a bully again, he slams his blade into the earth. His body is bathed in darkness, which hardens into an armor, and his knife extends, into a long, mighty blade.

-

Izuku walks into the locker room, preparing for the finals of the Sports festival. After convincing him to use his fire, izuku SWOONed Todoroki in one strike. Izuku walks up to Bakugo, holding out... An odd looking cloak. A Mantle if you will.

"Give me a challenge."

Katsuki chuckles, taking the cloak and putting it on. "Alright. I won't hold back."

-

All for one is laughing maniacally. He finally did it, he FINALLY got his hands on One For All. He is about to strike down the user, what was his name again? Togata? Before he's struck in the back by a Black Knife. He turns, seeing Izuku Midoriya, in his Knight form. Ah... Such an interesting quirk. But he should be fairly easy to take down. All for one flies towards izuku, as izuku flies away. Wait... Where's that music coming from?

He prepares to attack, before... **SWOON** all for one is cleaved into two.

Good parent/father Enji au

-

Todoroki and Midoriya are fighting, the semifinals of the Sports Fest.

"TODOROKI! IT'S YOUR QUIRK! USE YOUR FIRE! IT'S NOT HIS IT'S YOURS!"

"What? I know it's my quirk. I'm avoiding my fire because I'm fighting YOU."

"What? D-don't you have like... A traumatic backstory full of abuse? Weren't your parents a quirk marriage?"

"Jesus CHRIST NO! My parents have a loving relationship like any other."

"Wh- but why are you avoiding it against ME?!"

"Motherfucker you're a pyrokinetic who gets stronger by absorbing fire."

"What about your lack of use in other situations?"

"Well, fire is much more dangerous than ice. Like a gun compared to a tazer. My control isn't fine enough to safely use it on human targets yet."

"Oh. But... Why does your family have so many kids? I assumed your dad was like... "Looking for the perfect mix" or something."

"First off, no, second off, I'm a bit offended at your negative perception of my father, and third off they have so many kids because they have a goddamn breeding kink, midoriya."

Izuku suddenly looked mildly traumatized, which confused the audience as they couldn't hear the conversation.

"That look? It's like how I felt when I first found out. Literally the DAY my mom got home from the hospital after my latest sibling she asked dad if he could, "put another baby" in her. They aren't abusive, they love all of my siblings and myself."

He points to a section of the bleachers. Izuku looks over, and his expression becomes even more horrified as he sees a SEA of peppermint.

"Holy..."

"If you'd believe it I was the ONLY single-baby pregnancy. Most were twins or triplets, but their record is seven."

"I avoid using this language but WHAT THE FUCK?"

-

Later that night, izuku walks into the living room. His mom wanted to talk to him about something... Serious.

"Izuku... Sit, please."

He does.

"I... Haven't been entirely honest."

"Honestly with the day I've had nothing you say can surprise me."

"That... Sperm donor may not be your biological father... You were born from a foursome..."

Izuku, thoroughly surprised in spite of his former stance, starts hyperventilating, he already knows who the other candidates are.

-

Izuku walks into the classroom the next day, but Todoroki is... Uncharacteristically smiley.

"Hey there midoriya. Or should I say... Brother?"

Todoroki's howling laughter and midoriya's horrified screaming echo across all of UA.

-

Yeah. You get it. Essentially a comedy-focused "good father Enji" au with... A few sprinkles added.

Also, due to the power of love the quirks are changed. I'll only mention the canon children.

Toya- blue flame is simply a stronger hell flame, not born without the needed resistances.

Fuyumi- stronger ice. Colder, maybe a different color for the funny.

Natsuo- Frost flame. Fire but cold.

Izuku still has one for all but his original quirk is a simple fire production and manipulation (but his fire is green, because I've always found that trope cool when it comes to fics where izuku has fire. However One For All made it so he could absorb external flames into his own and himself, and the absorbed fire temporarily boosts his strength further, separate from the boost One For All causes.

Izuku is anxious as he enters the ER. He hadn't even had the chance to get out of his hero suit. Katsuki texted him to get there, and that it was Urgent. Relating to one for all.

He hands his id and hero license to the nurse, before being led to the section exclusively for heroes and their families. He enters the room, seeing Katsuki sitting in the hospital bed looking... So tired. All might- Toshinori is sitting beside the bed, looking just as tired and much more concerned.

"Hey."

"Oh thank God you came."

"Why wouldn't I?"

"Honestly you should've left me for dead."

"Katsuki how many times have I told you to stop making those jokes? I forgave you a long time ago."

"A-"

"Anyway, let's get to the actual matter at hand. What was so urgent?"

"It's one for all... It's killing me."

"What?"

"None of us realized before now, but one for all is slowly killing me. My aging was accelerated. We didn't realize it before but... People who are already quirked age rapidly with it. The docs said if I get this damn quirk out of me soon most of the damage can be fixed."

"Young midoriya we-"

"I know what you're asking, I'll take it. I just need a few questions first."

"Of course."

"Why not before? I... Try not to hold a grudge because he grew into a great person and a great weilder but... As he was then? Seriously?"

At that, guilt showed on both Bakugo and All Might.

"Well... Young Bakugo, even with his... Attitude, seemed more than adequate in the strength department. And he showed that he still had a good heart under that exterior. If I had met you before him, you'd likely be the one with One for all."

"What'll happen with your quirk?"

"The ghosts said as my embers burnt out i'd lose my ability to use the quirks one by one, but I'd keep explosion. But, since the quirks in one for all are imprints rather than the quirks themselves, you'll get Explosion too. Probably actually gonna be your first to unlock, since you're already so familiar with it."

"Alright..."

"And since one for all was made fairly public after the War, we can probably explain the situation so people don't think you were faking quirklessness or something ridiculous like that."

"And hey?, I'll help come up with suit ideas that accommodate the quirks while retaining your look. And help ya learn the quirks too."

"A few last things."

"Yeah?"

"I wanna get my copy of those sweat gauntlets designed to look like a different type of bomb. The grenades are cool but they don't fit my vibe, y'know? Also YOU'RE explaining all this to my wife."

-

Essentially a fic idea where Bakugo gets OFA and izuku gets into UA through sheer blood, sweat, and tears. Bakugo grows as a person and... Yeah. You get it.

NSFW just in case for a joke about sex.

-

Aizawa is looking down at a notebook like it's made of human skin and flesh. He found it on a routine inspection of the common areas of the class' dorms.

"What's that Shou?" Mic asks, uncharacteristically quietly.

"A notebook..."

"What? One of midoriya's quirk analysis notebooks?"

"No... It's far worse." He hands over the notebook.

"Let's see, Rules and Regulations of... The... 1A... Poly... Cule..."

"Yeah."

"Welp, let's get to reading."

"Wait, isn't that like... A huge privacy violation?" Midnight asks, her tone showing she already knows the answer.

"Well, I think the mayonnaise incident last week justifies it."

"Read away."

Mic opens the book.

"Rule one... Keep Izuku and Katsuki separate on cuddle nights, because they'll either- dear God- they'll either start fistfighting or blowing each others backs out. Either way broken bones will be involved."

"Oh my God..." Midnight's tone is an odd mix amused and horrified.

"Rule two. Remember, the person who gets extra slices on pizza nights is cycled through us by seat number, don't pretend to forget and take extra when it isn't your turn, or you'll take the Hellfrost Walk.

*Reminder note from izuku: the Hellfrost Walk is when Momo creates a long, shallow pool and it gets filled with water, shoto cools it just above freezing and the punishee has to walk through the length of the pool."

Mic inhales, knowing this'll be a long afternoon.

What it says on the tin. Izuku is born with a ranged version of All For One. The closer the target, the stronger the pull, the easier the steal. However he's still a hero. So he only takes quirks from willing people, often those on their deathbeds.

-

All Might is pinned by All For One, but he's still got that DAMN grin on his face.

"You don't get it, Yagi. Once my boy realizes his true potential, his DESTINY, he will take on my throne. With me? I prefer the plug and play, simple quirks. What makes the biggest boom. But him? He loves those with detailed effects, which may not be strong on their own but with enough skill and precision will be forces to be reckoned with. His quirk synergies? Will be stronger and more creative than you and I could ever HOPE to imagine. He will be the downfall of this society, and the creator of our THRONE."

"You're right about one thing, all for one."

All might grabs all for one's arms.

"He's so, so strong, Of both mind and body. His strength will far surpass what either of us could ever wish to achieve... But... He won't use that strength to conquer... He will use it to protect the world. I will never forgive myself for how I behaved once I first found out he had a quirk like yours... But I know he'll use it to be a hero. Potentially the best damn hero this world will see for a LONG while."

All for one sees a green blue in the corner of his vision before Izuku SLAMS into his back, clinging on and beginning to pull.

"Oh? You think that will work? Your pull has always been weaker than mine, so-"

All for one sees the dark green sparks around izuku's hands popping into bright sparks like fireworks.

"You didn't... You didn't... GIVE him..."

"But I did. And that will be your downfall."

All for one tries to flail, though it grows weaker as quirk after quirk are pulled from his body. He feel his body grow frail, as his longevity quirks are pulled.

You know how some Only Women Have Quirks fics have women be like 15 feet tall or some shit and men only make up about 10-20 percent of the population.

What if a fic did that without the actual "only women have quirks" part? Men's quirks aren't much weaker on average. Men's physical strength is on average slightly below that of women, as whilst women evolved more drastically, men still DID evolve. Men, whilst not growing in size, did still have their muscles evolve to be denser, and their bones stronger. In fact, in wartimes special types of tanks and other weaponry were built to fire men at high speeds without harm to the man himself.

-

Izuku watches as the Temperature duo, Endeavor and Everfrost fight a villain in a mech suit, clearly struggling as the suit has heavy thermal resistances.(I've read a lot of really good "good parent/father Enji fics lately, don't judge) before Everfrost sees a small opening in the top, in a tactical maneuver, grabs Endeavor, jumps up to the opening, and slam DUNKS him into it. The mech, unfortunately for the villain, only has thermal defenses on the OUTSIDE.

-

Izuku and Ochako are divising a plan to beat Iida and Katsumi in this exercise, before izuku sees a vent.

"Hey, Uraraka. I've got an idea."

"Yeah?"

"Have you ever heard of Among Us, uraraka?"

In this au, the OFA users become a string of vigilantes, whilst All For One becomes a hero (he still cringes about his edgy phase as a teen). He is the immortal hero, Collector.

​

The One For All users aren't evil, but they aren't exactly good either. His job as a hero is simple: keep the users in check and make sure they don't go full villain, as they're too strong a force for the HPSC to handle. All for one and One For All are public knowledge, and it's known that the One For All users are, whilst not a malicious force, certainly a mischievous one. Some users certainly show more restraint than others when it comes to killing, though all of them are at least a bit trigger-happy against villains.

​

All for one gives longevity quirks to users once they pass it on, simply because he finds their antics amusing, and for how chaotic they are he'd still miss them. He owns a large property, with individual rooms for each user and himself.

​

Each user retains about twenty percent of the strength their iteration of One For All had, not growing nor shrinking. If someone attempted to or God forbid succeeded in severely harming or killing a user, then EVERY OTHER USER and all for one himself would tear the poor fool limb from limb. All for one himself typically respects the no killing laws, but if you even THINK about Messing with his ~~family~~ responsibility then you'll have hell to pay. And what will the HPSC do about it? Fuck all, because they do NOT want the smoke with All For One and the users.

​

This all goes well until ninth, Izuku Midoriya. The most bloodthirsty of all of them when it comes to villains. The energy of a dozen suns, and far and above the hardest to manage. Though how helpful and kind he is when he isn't out committing homicide certainly makes up for it.

Due to some sort of divine recognition of their actions, 1A are promoted from mortals to gods. Immensely powerful, however they still need to live out their mortal lives with this new power before they can go into the realm of deities. Alongside each of their special abilities, they're all immensely physically strong and durable, and able to survive impossible odds.

​

Rikido Sato, god of nourishment. Able to turn even the most barren of wastelands into flourishing ecosystems with a wave of his hand.

​

Minrou Mineta, god of lust. Not able to cause it, but is empowered by it. He is not empowered by forced acts such as rape, but only by the mutual, burning desire between lovers.

​

Ochako uraraka, goddess of gravity. Able to swap gravity's effect on individuals or even the whole planet from nill to thousands of times it's normal.

​

Mashirao Ojiro, God of combat. Alongside immense physical strength surpassing that of most of his peers, he has expertise in every fighting style both modern and long forgotten.

​

Denki Kaminari, god of electricity. Able to absorb, generate, and manipulate just shy of infinite amounts of electricity. Able to shut down a country's grid with a THOUGHT.

​

Eijiro Kirishima, god of defense. The ultimate shield. Strong, and always in a nearly impossibly durable state. Able to make others and objects JUST as durable.

​

Fumikage Tokoyami and Dark Shadow, god(s) of darkness. Able to manipulate the night, shrouding themselves in it and being empowered by it. Though they are still conjoined.

​

Hanta Sero, god of adhesion. Able to stick anything to any other thing, no matter how impossible it should be. The bonds are unbreakable unless he wants them to come apart.

​

Kyoka Jiro, goddess of sound. Able to manipulate and create sounds, including perfectly imitating any noise and creating incredibly powerful sound pulses.

​

Koji Koda, god of animals. Able to control any and all animals like a hivemind, only excluding his fellow gods. Also able to morph his body to gain body parts of those animals freely.

​

Mezo Shoji, god of Transformation. Although his normal appearance remains the same, he's able to morph his own and others' bodies at a whim. Also gets a 4x strength buff against racists.

​

Mina Ashido, goddess of acid. Can summon infinite amounts of acid, which is strong enough to melt down ANYTHING.

​

Momo Yaoyorozu, goddess of creation. Able to create any substance or object (note that she can't create life. If she tried to summon, say, a cow, it'd just be a dead cow). This summoning only requires a rough knowledge of the layout, alongside a perfect memory.

​

Tsuyu asui, goddess of amphibians. She has the abilities of EVERY amphibian, pushed to an absurd degree. Able to control any amphibian (her control supercedes Koda's).

​

Toru Hagakure, goddess of stealth. Able to make herself and others physically impossible to perceive, even to only specific people if she wishes.

​

Yuga Aoyama, god of sparkling. Able to blast beams from any part of his body, and will never tire or grow ill from continued firing.

​

Tenya iida. God of speed. Able to manipulate the speed of any object, even surpassing light speed.

​

Katsuki Bakugou, god of destruction. He can summon infinite explosions, stronger than the strongest of atomic bombs. Luckily, they only harm what he WANTS to get harmed.

​

Shoto Todoroki, god of temperature. Able to summon infinite amounts of ice or fire, at any temperature he desires. Even subzero fire and burning hot ice.

​

Izuku midoriya, god of quirks. Able to take, give, create, enhance, and destroy quirks. He also regained the quirks of one for all (note: the vestiges aren't gods themselves, moreso advisors to izuku, who can make themselves visible to others and even tangible. Though they are linked to izuku, incapable of exiting a certain radius of him.

Nsfw for mentions of sex (gasp! So scandalous!)

In one universe, Inko Midoriya is a normal, unassuming woman. Not in this reality. In this reality, she's an underground hero. Sure, her quirk can't disembowel or castrate people like some think it does, but it's still strong enough to give the body part of choice a little wiggle, which disorients her opponent long enough for her to land a precise kick to the skull and knock them out. Through her training, her quirk maxed out at about 25 percent her max lifting strength, so most of her training in school was to increase the AMOUNT of things she can carry, her precision, and her speed. carry weight is independent object to object, but she caps out about 30 objects if they're all fairly large, and about 150 of they're all small. Due to the whole "percent her lifting strength" part she hit those weights HARD, resulting in a bit of a power lifter build, as opposed to the typical lithe heroine.

She's kicking villain ass on her typical day, before motherfuckin ALL MIGHT shows up, stealing her defeat by elbowing the current villain in the gut. He looks over, and any irritation is long forgotten by that big, dumb grin.

"Oh, sorry. I knew you had it handled. I just... I had this odd feeling and came to help."

"It's fine, it just caught me off guard."

"Yeah..."

The silence is suddenly awkward, both just sorta staring at each other.

"Soo..."

"So..."

"You... Want to get dinner after our patrols? I've been trying to get in the habit of meeting other heroes ever since I came back to Japan."

"... Sure?"

They go back to staring, before all might turns away.

"anyway, I must be off for now!"

Inko deflates as he jumps away, her face turning beet red "I just met him, I just met him, This CANNOT be happening."

Simultaneously, All Might's face is red as he flies (not really but he may as fuckin well be) away.

Occasional meetings turn into hangouts, hangouts turn to dates, dates turn to marriage (the only time all might saw Torino cry, even if the old man vehemently denied it he SAW the puffiness of his eyes and the wiping of tears when he thought nobody was looking.) And the marriage led to sex. You'll never guess what THAT resulted in.

Inko looks at the rest, and the two lines shown. "Well... Fuck."

Unbeknownst to Inko and All Might, one for all had an odd interaction with the whole process. Due to its imprints on toshi's quirk genes, fused with Inko's Pull quirk. This resulted in around 30 percent of One For All's power chipping off into the new embryo, creating a new core rather than taking the original, with all the same quirk genes saved from the past users, plus Inko's pull quirk, which altered due to the power to become full-on telekinesis.

Izuku's first few years are normal. But then, his quirk doesn't manifest on time. Toshi's scared of the idea of him being quirkless. Not because he'd have a problem with it, and he's love his little boy all the same no matter what (it'd be pretty damn hypocritical if he did have an issue), but because he knows quirklessness is becoming rarer by the generation, and quirkless people are already rather discriminated against.

A few years later, All Might is preparing for the biggest battle of his life. He's about to leave, before he turns to inko.

"Remember... I love you, always have and always will. I love izuku too. If I don't make it, make sure he remembers that."

"Okay. I love you, Toshi."

All Might leaves.

-

All might is in a crater, holding in his own guts as All For One stands above him. He's hardly conscious, barely holding on.

"-and who knows? I may just go to your wife and son, and kill them too when I'm done here."

"Don't you... Don't... You... Dare..."

"And what are you going to do? Stop me? Once you die, I'll simply take my brother's power back, and take my rightful throne."

All might feels his heart race, rage building. He pushes through the pain, using his free hand to punch All for One hard. He forced his body to move, the surge of overwhelming rage causing him to overpower all for one easily, pushing away all of the demon's vain attempts at resistance. He's pretty sure All for One is dead, but does something that will change the path of... Everything. He punches with all of his willpower, all of his strength, and all for one's whole body is smashed into a fine paste, rather than just his head. He fades, expecting it to be permanent.

-

All Might slowly fades into consciousness, as bright lights shine into his eyes. He groans, trying to push himself up before a familiar cane cracks against his shin.

"I'm assuming... I'm not dead?"

"No but you got damn close. About half your stomach and a portion of your intestinal tract were destroyed. One of your lungs was heavily damaged, though it can be treated to nearly the same state it was before with recovery. Now listen and listen well. You can't do any hero-ing for the next five months whilst you recover, else you'll complicate your wounds and we'll have to remove MORE."

"Got it..."

"And I swear to God if you do hero stuff anyway and your complications don't just kill you? I just damn well might."

"Alright I get it."

There's a beat of tense silence.

"So, is he-"

"Yes, we made sure he was dead. No escaping, no backups, none of that. Besides, even the BEST regenerative quirks can't save somebody from what you did to that bastard."

"Are you sure-"

"Toshinori Yagi-Midoriya you turned the motherfucker into a HOMOGENIZED GOOP, he didn't survive."

"Damn, alright. I get it."

"Also, I'd like to say your boy's quirk came in the week you were under."

"Wh- REALLY?!" Although Toshi didn't have a problem with the idea of izuku being quirkless, he's still glad. He knows izuku got a lot of undeserved shit for it. "Wait... What do you mean by "interesting"?"

"Well... The genetic formation is... INCREDIBLY similar to One For All itself. It's different, but it has LOTS of similarities."

"What? Isn't that supposed to be impossible? I thought that the gene that got passed on was just the user's original quirk gene?"

"Well, usually. Typically, one for all's genes are added atop the person's genes. But for quirkless users, it seems to override the genes instead. So, since there WERE no other quirk genes to draw from? Essentially another one for all in a different font.

-

Izuku walks into UA, practically VIBRATING with excitement. Having TWO hero parents could've easily gotten him on the recommendation exam, but he just wanted to do the normal one (sounded more fun). He trips, about to activate his quirk before something ELSE affects him. He's floating, not the stone stillness his telekinesis has, but more like... Floating in a pool, bobbing and turning. He's righted, before he's released. He looks at the person, a cute looking brunette.

"Sorry for using my quirk on you, just thought tripping before an exam would be bad luck."

"It- it's fine."

"Anyway, you're hero track, right?"

"Yeah."

"Me too! Good luck!"

-

Izuku's in the exam, crushing robots into balls of scrap and flinging them into others. He sees people running in one direction, before rumbling fills his ears. He looks over, seeing a gigantic robot taller than the buildings rolling towards them. He's about to fly away, before he sees the girl from the entrance pinned under rubble. He hasn't done this much output, so he knows he's gonna have a migraine for DAYS after this. A green glow cloaks the zero pointer, and it slows to a still. He applies more and more force, the thing slowly starting to waver. His nose starts to bleed, but he just applied more pressure. The zero pointer is CRUSHED by his power. Izuku passes out.

Edit: just posted this (with some minor changes such as fixing typos and fixing up phrasing) as a chapter 1 to the fic on AO3. It's under the same name.

In the final War, izuku is blending high end after high-end, turning them into red smears. Elsewhere, Mirio is communicating with the vestiges.

"So... I'm unworthy?"

"No, ninth. You're wonderful. It's simply because your quirk has an anti-synergy with one for all. If it were purely you, you'd be entirely worthy. But when you activate one for all, permeation activates too. When you hit people, it's actually only the wind pressure. For most villains? That's more than enough. For all for one? Nope."

"Alright."

"Ninth, we're sorry."

"No, no. I get it. It hurts, but I get it. I've actually already got someone in mind."

"Really? Who?"

"Well, absolutely, definitely, purely hypothetically. How would One For All interact with other strength enhancers? Specifically a multiplicative type."

-

Nezu hears his door squeak open, seeing Mirio. "Hey, principal. I'd like some help with something."

-

Izuku stands with Mirio against All For One, seeing the villain stare down at them.

"Well, mister Togata. Are you going to face me?"

"Nah. But he will."

Mirio jams a needle into izuku's veins, making all for one confused.

"What... Is that?"

"A mixture of meth, five hour energy, and a bit of my own blood."

All for one sees izuku's Legendary form grow even larger, his pupils dilating impossibly large.

"Well shit."

Izuku and katsuki are four, playing with blocks, as four year olds do. What are they building? A 1000 to 1 duplicate of the taj mahal. Again, as four year olds do. Izuku sees Tyler (idk, I just made up a name on the spot) standing near the block he needs. Not using it or anything.

"Hey, Tyler. Can you hand me that block?"

"No."

"C'mon you're right next to it."

"Don't care."

"Fine. I'll just grab it myself."

Tyler grabs the block, sticks his tongue out, and runs away.

Izuku is suddenly uncharacteristically PISSED. His breathing grows heavier, completely ignorant to the green sparks forming around him. He's interrupted by a tap on the shoulder.

"It's fine izuku, I got the same block right here." Izuku takes the block, placing it. Their 1000 to 1 taj mahal is complete. Before a basketball hits it, knocking the whole thing down. Izuku screams, exploding in green sparks. The smoke clears, revealing izuku standing at well over 7 feet tall (as a goddamn four year old no less), with back-length glowing, emerald hair, his eyes glowing fully white, with no pupils.

"GODDAMNIT TYLER!" katsuki yells, only moderately less pissed about the 1000 to 1 taj mahal.

-

The doctor adjusts his glasses, looking at the papers in his hands.

"Well, ma'am. Your son's quirk seems to be a transformation type we'll simply call "legendary" as a placeholder name. It seems to make it so that his normal appearance is naturally stronger than it should be, with an easier time building muscle and a far higher plateau point than normal people. On top of that, his transformation makes him an absurd amount stronger, damn near top 20 levels as it is now, yes as a four year old. The strength of his transformation seems to be an incredible multiplier, rather than a linear increase. So his strength will only grow as he does. It currently seems anger driven but He may, in the future, be able to control the transformation. Both when it happens and how he behaves in it. One piece of advice? Stock up your fridge, because he will grow a lot and he will grow RAPIDLY.

-

Inko sighs as she and izuku walk out of the clinic, izuku happily sucking on a lollipop. She doesn't know whether to be happy because his quirk manifested, or freaked the hell out because... It took MIRUKO (yes, THAT Miruko, who was luckily already in the school for... Some event which inko can't quite remember) to knock him out. Luckily, due to this being a case of quirk manifestation and nobody being seriously hurt (by some miracle) izuku isn't in trouble. Simply mandatory quirk counseling to help him control it.

-

Izuku walks down the street, now damn near 2.4 meters (or 7'8" for my fellow Hamburgers). He's built like a goddamn wall, only slightly leaner than all might at about 218 kg(482 pounds). He's carrying a bunch of gigantic soil bags, each a few damn tons. Only a week until the UA entrance exam. He's just getting some last minute work before the exam (and whatever school he gets into). He drops the bags in the back of the shop he was bringing them to. He begins walking back. He COULD carry all of them at once, but the shop owner said he couldn't stack more than three because he was afraid of the weight of the upper bags tearing the lower ones.

-

The usj trip is going to shit. Izuku is with asui and miners in the shipwreck zone. The amount of amphibious or aquatic villains makes so much as touching the water dangerous. He looks back.

"You two, on my shoulders."

"Wha-" mineta's interrupted by Asui.

"Mineta he's one of the strongest AND smartest in our class. Get on the damn man's shoulders."

Once they're both on securely, he leaps, not caring as the ship crumples behind him he well clears the water. They see Aizawa fighting the villains, all beginning to slowly shuffle hands-and-knees towards the rest of the class. Asui in front, izuku middle, mineta in back (no, izuku definitely didn't go in the middle because he noticed mineta peeping on asui, what a ridiculous notion. He totally just felt like going in the middle. No other reason. He sees a hand grab asui's neck, pinkie out.

"Move and she dies."

Izuku pauses, terrified. For once? He's well and truly stumped. In most situations, he can think of a solution. He sees aizawa being beaten down by the nomu. But then, a flash. Aizawa manages to activate his quirk on shigaraki for just a moment, one izuku takes advantage of. He rapidly gets up, punching Shigaraki square in the jaw, breaking it easily. That rage? He releases the valve. Another punch sends shigaraki's way, one that would surely turn the bastard into a red stain across the pavement. But, the nomu blocks it. However the nomu's typically impenetrable guard wavers, and it staggers. He punches again, again, and again, knocking the nomu back a small bit with each attack.

Katsuki looks on from where he is. Instinctually, he feels he should be nervous. But... Something feels different. He looks closer, and... Izuku's eyes... They're normal, he's in control! HELL YEAH!

Basic suspected traitor fic, but after izuku is found innocent he leaves UA, The people who defended him in the face of the accusations going with him (A good portion of 1A, Toshinori, mei, and a few others). They form a vigilante group called the Defenders. Toshi funds the group through his DISGUSTINGLY large bank account, alongside acting as the Guy in the Chair. Mei is the one-woman repair team, keeping their suits intact when damaged. They have a small apartment building attached to a MASSIVE garage which is both their home and their base of operations. The garage is mei's workshop.

Even though there is a licensed hero in their midst, the rest are still committing vigilantism. But, UA manages to convince the HPSC to let them handle it, in an attempt to bring them back. They tried several plans before, but they're resorting to a new one. Attack their home-base whilst they're away. When the time came, everyone except Toshi and Mei were away on separate raids against villain groups. They recruited the assistance of some other heroes just in case, even though they expect this to be rather easy, as mei is an inventory, rather than much of a fighter. And toshi, due to a mix of newfound quirklessness, aging, and his injury, surely wouldn't put up a great fight.

Miruko busts down the door, walking in. Mei and all might are... Just standing in the middle of the room? No defenses? There's some stuff here and there, but aside from th-.

She's cut off by a metal foot to the side of the head, looking up and seeing her robotic twin. She looks around, seeing... Robot duplicates of most high-ranked heroes. It quickly devolves into fighting, heroes fighting their doubles. The robots are built with imitations of the source hero's quirk. Endeavor? His robot has flame throwers. Midnight? Nozzles which release a fog, they couldn't quite imitate the sleep gas yet so they made an irritant, which causes itchiness and mild burning, with no lasting damage. On top of imitating their quirks, the robots are simply significantly physically stronger than their source heroes. A low-level hero breaks through the crowd, only to be greeted by a brick to the dome from Toshi.