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Triple The Threat Of Becoming Braindead

Summary:

Izuku, Denki and Mineta were those class's clowns the moment they met each other in the forth class: they couldn't be serious for more than three seconds in public, created the most absurdistic pranks ever known to men, but nevertheless wanted to be a hero team.
It's a bit problematic when you get mediocre marks for all and every subject except one, but they could bring out diligence for education once in a while ("in a while" being three years), so their dream was in reach.
And they were similar not only in their stupidity, dreams, history and existence of drawbacks for their quirks.
Behind their smiles were secrets that they kept from the world: problems of trio stays in trio.
What a pity some people don't care about borders and want to help you nevertheless.

Chapter 1: - It will cost you fingers, quirk stability and socialising. - How are we splitting?

Summary:

The start of their heroes' journey...
And the middle of their story.

Chapter Text

Sometimes you find people who become so necessary for your life that you don't understand how you could live without them before.

Midoriya Izuku was blessed with two of those, and he knew they had the same opinion about him and one another. Kaminari Denki and Mineta Minoru were his brothers from other mothers: they all had similar interests, sense of humor, dream and selective stupidity. The moment they met in the fourth grade, they connected immediately through shitpost humor and Hero Smash Plus Ultra. Some time later trio came to a conclusion they had the same favorite solo game ("DR is peak" was said in unison), favorite band (FLOW still was somewhat popular but!...), movie and even dream: they all wanted to become heroes! You might say that it's not that unlikely, considering the dream, and, yeah, true, but those three were already training for it, unlike many.

Well, there were other similarities between them. For example...

All three of them were looking at their math test score.

"So, monthly math score cup goes to..." Denki declared, while he and Minoru put their test sheets on Izuku's desk. Three of them looked at each other results, and greenette imitated 'praise the Sun' emote.

"Seventy-eight, guys, you didn't stand a chance!" Izuku said, looking at the 65 and 67 on Denki and Minoru's sheets respectively. Usually they had nearly similar scores in low sixties for all subjects except for one but Izuku decided to go all out on this test.

"Mido-GOAT?" The class were betting on who will get a higher score of those three, and winners would not participate in class duties for month. Overall score throughout the middle school was 10:9:9, with Midoriya now in lead.

"So you can get normal marks on-"

"I literally spent 30 hours throughout five days before test to prepare for it, I felt my mind expand and collapse", Izuku stopped false accusations. "And U.A. exams are also coming".

"There's three monthes until it", Minoru said. And he would be correct but-

"Minoru, us three didn't get a single A in middle school, and I don't have a single B mark on Japanese in this year, I would say that I started late".

The fact that those three wanted to be heroes were known to the whole school, and there were also other known facts: all three of them were traumatized to some extent. And while Kaminari's 'extent' was unclear, Midoriya and Mineta's were known well: Midoriya was wearing gloves to hide prothesis for his fingers on both hands, and Mineta wasn't able to talk with women tet-a-tet at all.

It has created some ugly situations in the past but by now everyone in the school knew about traumas and they could and would beat you to a pulp for even trying to use it against them.

At this moment a teacher came in, so the class sat down and quieted down.

***

Dagobah beach had been a peaceful place three years ago. A dirty place but peaceful. But since then three kids decided that this was a good place for quirk and strength training, so Dagobah became very chaotic and much cleaner. By now there were only immovable (for those kids) objects, like cars, fridges and old bathtubs.

And even if it wasn't their only workout place anymore (their parents were not as enthusiastic about their kids working out near rusty nails and heavy metallic things but who could stop those idiots?), the trio kept on cleaning the beach off.

"'Zuku, can you repeat this idea of yours about adrenaline rush?" Kaminari asked, looking at Mineta's quirk training: Minoru could create, as he called them, 'apparent horizons' on things that would 'glue' everything they touch into the place where the 'horizon' and an object touched relatively to the 'main object'. So he had to throw ping-pong balls into a fridge's door and glue them as close as possible. And it was easy to see that he was creating 'horizons' under the place where it should land: apparent horizons could be seen as darkened spaces with subtle purple glint which resembled his natural hair color. Midoriya still couldn't figure out how his friend got black-to-purple gradient as his hair color and why his hair was so glossy, considering that his quirk was (clearly) a space manipulation, and both of his parents had normal Japanese black hair. But Mineta wasn't bothered by such questions and decided that his hair wasn't strange enough and added a bit of yellow line accents that went from face to the back of his temples.

"There's organs just above your kidneys, theoretically you can simulate them with your quirk to start adrenaline rush but I'm not sure. Also, use the bare minimum of your quirk, otherwise you can burn your insides", Izuku was looking through self-made by his mother tests for those two. Results were a bit better compared to usual, but not good enough (and he knew he was as bad, sometimes even worse). While he was going through their answers, he was keeping himself afloat parallel to earth. His quirk, Self-repel, let him, you won't believe, repel himself from points of other objects. And maybe passively repelled his hair from him, otherwise he couldn't understand his Super Saiyan-like hair style from birth.

"Are we sure that it is safe to electrocute yourself for adrenaline rush at the middle of the dump?" Mineta asked with eyes still on the fridge.

Kaminari and Midoriya looked at him, then at one another and nodded in unison.

"Then I'll leave it for the end of the week for dad's supervision", Kaminari said and stood up. "Brothester, lend me a palm".

"Just a second..." Midoriya looked at the results and delivered them immediately. "Guys, we need to dive into school material, like, this evening, otherwise we won't have a chance for U.A."

"So bad?" Mineta asked as he spun to look at Izuku.

"We are below acceptance score by twenty percent", Izuku laid tests down and came down to Kaminari. "Like, every one of us got 'our' subjects absolutely correct, and even with that we don't stand a chance".

"So... Week-long study session?" Minoru wasn't a fan of studying, as if anybody was, so it would be a torture. But there was a little problem.

"I do not believe that we would keep all that information in our heads for three months straight and there's literally no way we could work out all this in a week, so it would be more clever to just have an extra hour or two of preps everyday", Izuku said, and other two looked at him with fear. "With freed weekends we will have sixty extra hours, so-"

"No other way?..." Mineta looked at him with a mix of defiance and doom.

"You know somebody who could teach? Mom comes back home half-dead, dad is not good at explaining things, so it leaves your parents or someone not close to us", Izuku concluded, looking at him.

"I could ask them if they know anybody", MIneta countered.

"Why do we not even try to think about tutors?..." Kaminari semi-suggested and was silenced almost immediately.

"We together have attention span of a Yorkshire terrier", and Izuku wasn't exaggerating much: if one of them isn't interested in something, he lose interest in the span of an hour. "And it also costs as a pancrea".

"The worst reasoning of today versus the worst reasoning in history", Mineta fired back with a grin on his face.

"So, do we go for self-learning strat?" Izuku asked and got definite answer.

"Nah, I'd lose", Kaminari replied while still stretching for a spar.

Izuku finally came close to Denki and got into a stance. "Ready?"

"As always", Kaminari replied, and his hands for a moment crackled with lightning.

Three years ago Kaminari would've considered a spar a second-long fight with him frying himself instantly in kamikaze-style attack. Great news were that Izuku found a better option: he suggested to Kaminari to try regaining his control before incident. And it worked out greater than anybody thought it could: now Kaminari could be a taserman for an hour long (with proportional to time used cooldown of three hours) and create small-scale EMP. He still could fry his brain, but now it would be out of his free will.

Now, however, he was perfecting his technique into something entirely different: Denki was hit in the head by genius idea of using quirk on-hit. And for this Izuku was equally the best and the worst training partner: he could repel himself from Kaminari's attempts of attack, so he wouldn't be harmed but precision of his quirk-use couldn't be checked. Anyway, it was better than electocuting a friend every training. And the con was partly negated through 'side effects' of Izuku's quirk: his body was more sturdy for overloads and his reaction time was faster than avarage, so he could provide a good enough feedback even while evading.

"Let's go", Izuku said, and his foot went for Denki's chin but Midoriya feinted through quirk and momentarily went for Kaminari's temple. Denki reacted by layering his head in lightning, and his hand reached for friend's leg and- miscalculated taser-proc, for what was immediately punished by Izuku's punch into his arm.

Izuku slid back from Denki, took a starting stance and went at him again. It was the nearly perfect no-touching spar, Izuku was always just an inch too far for Denki, and Izuku went for a real hit only when Denki used his quirk bad enough for Izuku to get a moment to hit.

They went at it for about a minute, and Denki surrendered. "Clipped it, Jarvis?" Denki said to Minoru, and Mineta fired right back: "Brother, you need to train. Fifteen out of hundred fifty-eight attacks were timed bad, from those fifteen five were late. And add eight gotten hits."

"It's still better than it was", and it was a complete truth from Izuku. Denki's first attempt ended with blonde boy bruised throughly because Kaminari missed with his quirk seven times out of ten, and defensive use wasn't even in picture.

"Welp, ready for another round?" Izuku asked, and Kaminari answered with precise: "Of course".

***

Yaoyorozu Momo was having a great morning so far: the day before she invited her friend, Jiro Kyoka, for a sleepover, this day was Sunday, and they planned lots of things for today, from costume designing to Hero Smash!

"What do we have for breakfast today?" For Kyoka food was the second best thing at Yaoyorozu's manor.

"Pancakes, omurice, jam, tea, as usual, honestly", Momo answered with almost static expression because they woke up two hours too early (the funniest thing for Kyoka was that no matter how much Momo slept, it still was two hours too early).

The first best thing for Kyoka were Yaoyorozus themselves: a family of a billionaire was somehow the most normal and abnormal family there is. While they were, by all means, the richest family of Japan, they didn't boast about their money at all, society did it for them. But with this... Presents that amounted to couple hundred thousands yen were perfectly fine for them, like they didn't even know how much this present costs; their home is one of the coziest places known to Kyoka (and she is a cat-person who have been to cat-cafe), but the house is bigger than some villages of Japan; all members of the family liked all kinds of music, and they listened to everything, from Snoop Dogg to Bach, on a flippin' gramaphone (Jiro remembered to this day as Yaoyorozu Ronald put on a vinyl, and she had almost fallen from 'Guess who's back? Back again' that she heard from it).

"Come in, girls, breakfast is ready", Yaoyorozu Ronald said. The man was in his prime as a businessman: his black hair, that weren't tainted by his prestigious age of forty-five, tall and mighty figure, firm glance of dark-green eyes, ideal to the very last bit style and perfect manners gave him the unmatched presence in every company; he was the star of every party where he was. Except for two people...

Teens sat down and started picking things for breakfast. After about a minute three of them were joined by a magnificent woman in her early forties. Her eye-catching dark-purple hair in combination with feline yellow eyes were stealing all attention since her birth. But then she added mannerism and high society looks, and all competition, no matter how small it was, went into the window. Yaoyorozu Itoko was a math professor, but some people say that she was so good-educated, that she could humble most professors from other disciplines. And with that she was the most beloved person in Tokyo University.

"Good morning, sweethearts", Itoko said, while buttoning up her nightgown. Her hair was quite messy, and the night shirt was as if she put it on in haste-

"We are waiting only for you, my love", Ronald said while laying onto her plate some food.

"Thanks, Roro", Itoko kissed her husband on the top of his head and sat down near him.

To be absolutely honest, Kyoka thought that she should have some rotten teeth from elder Yaoyorozu's interactions: some would believe that they were still in their honeymoon phase, but they were in marriage for twenty years. Some role in it may have or may have not played Itoko's love to act as a cat (she did not get feline behavior from her father, in contradiction to her looks) and Ronald's tactility, but nevertheless.

"Oh, darling, Mineta-san asked for a favor last evening, could you look into it today?" Roland asked of his wife, and she doubtfully nodded after a second of thought.

"I sure hope it's not something bothersome..." Itoko said as she ended omurice and went for a pancake.

Itoko was very reactive and lazy at her core: if she hadn't fallen in love with Ronald, she would've, most likely, locked herself up and worked from home when she needed the money. Luckily for her (but was it only for her?) she saw the man of her dreams... And now she could lay around without a care in the world for anything except for Ronald and their daugther, except it was a complete lie: Yaoyorozu should be the perfect people for society, so she had to appear once in a while here and there. At least in her free time she could laze around...

"Three kids who wants to get into U.A. in three months", Ronald answered almost nonchalantly. Kyoka and Momo were looking at exchange with curiosity: Momo knew about her mother's... peculiarities, so her next phrase was almost guaranteed. But her expectations were outsmarted.

"I sure hope he will pay with something that is not money", Itoko said as she saw Momo eating jam with tea.

"Does 'South-western heaven' ring any bells?"

"Isn't it the only success of quirk-ecology experiment in Japan?" Momo half

"Yeah, it is. And Japanese government was solding it out to those who would remake it into a health resort with some limitaions on other things on the island", Ronald decribed situation, simultaneously finishing his breakfast. "And now it's one of the best resorts in Japan, what a surprise", there was literally no surprise in his voice whatsoever because Mineta family was known for two things only: for older Mineta's pervy adventures and for his ability to create the best place to relax. And when you have a Japanese government as a sponsor (who gets twentieth part of All Might income from foreigh missions, and that is a big chunk of money), you can build virtually anything.

"How's it connected to Mineta's request?" Itoko asked, already sitting on her husband's lap.

"He built a villa for himself there, and he is willing to give us an access to it whenever it's empty", and with that said by Ronald, Itoko decided that it was a great deal at the end of the day.

"A great place to f-"

"We'll go play Hero Smash", Jiro said and took Momo with her to the exit from the living room. But before leaving Kyoka added with shit-eating grin: "And you can go into your Smashing".

"KYOKA-" was heard from the youngest Yaoyorozu moments before the guest rushed to her friend's room.

"Well, quite an active morning", Itoko said as she leaned back.

"Are you talking about the very start of the day, the breakfast, or what will be?"

"Yes", Itoko replied as she turned around on him.

***

Minoru was seating at his place with Izuku and Denki by his sides, trying to complete "Re-entering The Spire: Baptism Minus Beta", and they were somewhat succeeding in it, with a bit of nuisance.

"HOW THE FRICK DID WE GET THREE FOR THREE MAZE FLOORS THE MOMENT WE PLANNED TO GO FOR TIME-LIMITED BOSS?!" Denki was honestly losing his last droplets of patience and, by extension, throwing a game.

"Less decibels, more gameplay, my man", Minoru had locked in by this point, so Izuku had to take position of psychological anchor.

"I CAN'T", Denki's voice had the whole spectrum of despair in this one word. "IT'S THE SEVENTH TRY".

"We still have five minutes until time limit-"

"With a boss who has so much hp that fandom has a speedrun section exclusively for him, so get to work!" Minoru said angrily and went mentally back to playing only. 

"Stupid thing with stupid RNG", Denki whined but started playing normally again. 

After three minutes of sending developers' parents to every place imaginable and unimaginable and leaving every bullet possible in the boss, trio finally got to end the boss. And with just two minutes for the next floor, Kaminari literally prayed during loading screen for good layout. And someone, seemingly, have listened to his prays.

"Boss is in third room?" All three eyes' became the size of Pokéball considering their previous luck. But the very next moment-

"Minoru, the tutor answered-"

"Mom, give me two minutes, please", Mineta answered immediately and went to the next room.

"What checkmark in RTS are you going for with such concentration?..." His mother asked and looked at the door. After a moment, she went in and sat herself down. "Oh, you're after 'Triple The Threat' checkmark, sorry".

While she was saying it, boys already cleared the room before the boss and went for the boss, where they were met by 'Mom, the Holy Gutling Golem', bullet-hell incarnation that was the flimsiest boss before the last section. And so he was burnt after five second of simultanious fire.

After skipping to the Time-Limit Zone, game was paused.

"So, what about a tutor?" Mineta turned towards his mother.

"Your father asked Yaoyorozu-san to ask his wife to tutor you three for U.A., and she agreed for two lessons every week, Wednesday and Friday evenings", Mineta Rorin delivered, and Izuku's brain went into overdrive.

"Are you talking about Yaoyorozu Itoko?"

"There's not much Yaoyorozus that are famous, Izu-chan", Rorin said but that was not what Izuku asked for.

"She is, like, one of the most famous math professor in Japan, can she teach three middle schoolers?" Izuku asked with quite a lot of disbelief on his face.

"It's anyhow easier than teaching students some complex theorems, no?" Denki fired out and was immediately silenced by the 'ya fr, idiot?' look on Izuku's face.

"For students, she need to read it out mostly, and they have a big base of knowledge for this. For us she would have to chew the information into a mesh and then give it to us", Izuku reminded him. "And we are three idiots with suspicion of ADHD, so... yeah".

"You're good, I asked around, you won't be the first under her care, and your predecessors didn't complain", Rorin said but Minoru parried:

"Because not a single soul would believe them even if they did complain".

"Also true... But it's still better than nothing, amirite?" Mineta-san said.

"Yeah, you are, ma..."

***

Denki and Izuku were going home from Minetas' house. Musutafu was quite plain visually but it was a good neighborhood to live in. Quite a lot of shops, arcades, karaokes. Overall, a quiet neighborhood...

"If you won't shut up, I'll hurt you even more".

Izuku forgot one simple word: usually, it was a quiet neighborhood. Sometimes, there was an idiot or two who dared to do something like this.

"Hey, mate, what'cha doin'?" Izuku said in English, as he came close to the predator. "She doesn't look like she's into it".

"Listen here, little shits", Izuku caught a metallic glimpse and ducked back the next moment. When the idiot turned fully, the lady he caught was still laying down without movement. "Go your way and don't trouble adults".

"We are more mature than you, considering we don't attack random people to rape them", Denki parried. Villain, considering literally no move from the victim, slashed randomly at Izuku, who jumped back and immediately got close to the ground, and tried to go for another attack but his hand was caught by Denki's, and a moment after the villain got roundhouse kicked in the head by Izuku and dropped unconscious here and there.

"If you are this weak, maybe you shouldn't prey on the weak, idiot", Izuku said and moved to the victim. "Miss, did he injure you?"

The woman reacted with her eyes but didn't move a muscle.

"Paralysis quirk, maybe... Blink three times if you feel much pain anywhere", Izuku watched closely and didn't got three blinks anyhow. "Okay... We will call the police now and wait for them with you, so that he won't wake up and go for you again".

Denki, after seeing what Izuku's kicks even without quirk could do, wasn't sure that the man will wake up even in an hour but nevertheless. Kaminari got his phone out and called the police.

"One-one-oh, how can I help?"

"There was a sexual assault on a woman in an alley between Solo street five and seven, the villain is unconscious right now, the victim can't move for some reason".

"Stay there, we are sending a car your way, arrival time is approximately three minutes", the operator said and kept on going. "Are you in any danger now?"

"My friend, with whom we've seen the whole situation, is tying up however he can the perpetrator, and there's no movement around us that I can pick up on", Denki looked around again and went to the victim.

"Can you name yourself and your friend?"

"Kaminari Denki and Midoriya Izuku", he answered and sat down next to the woman. 

"Stay there", the operator said and hung up.

Izuku ended tying up the predator, while Denki sat down the woman.

"The police is on their way, we will be with you until we give our testimonies and be cleared to go ho-" Denki tried to say but was interruptes by Izuku's phone.

The greenette picked up his phone and moved the phone a bit out of his ear before answering the call.

"WHERE ARE YOU TWO, IZUKU?!" Denki heard from the phone, and it was definitely his adoptive mother.

Izuku moved his phone close to the head and speaked: "We saw a man assaulting somebody, so we helped-"

"YOU ARE MIDDLE SCHOOLERS AND NOT HEROES, WHY DO YOU-"

"Dear, stop cursing at boys for helping people, please", Hisashi stopped his wife from lecturing Izuku. "Do you need help?"

"Nah, we'd win", Izuku answered. "We are waiting for police, but the man is tied up as good as I could muster".

"Okay, try to get home asap, 'kay?"

"Okay, dad!" Denki and Izuku answered in unison, and Hisashi hung up.

"So, what are chances that mom won't make us cook every meal for the next week?" Denki asked, and Izuku had one answer:

"We both know that they are between zero and one percent".

"Welp, at least there is some chance..."