Hello everyone! This is my first Boku no Hero fic! So...I hope I don't screw...too much.

Also, English is not my first language, so please don't take notice of any grammar mistakes that may lurk around here and there, if anything, tell me about them, I will try to fix them ASAP :)

Note: I do recommend that you read this first part, it will help you to better understand the story.

I do not own Boku No hero Academia

Summary:

In this world, people aren't born with quirks, they buy their quirks. The stronger the quirk, more expensive it would be. However, each person could usually hold only one quirk as having more than one usually led to death or, at the best cases, to insanity. All this led to a hierarchy where only the most rich people could be heroes. But Izuku was willing to prove them wrong, and, with a little help from fate itself, he would become the number one hero! !Gamer Izuku ! Friendly Bakugou

In a laboratory somewhere in the world:

"Wow...this is..." Mumbled one scientist.

"We did it?" muttered another running from the machine he was controlling.

"Looks like it!" A large grin spread over the face of the boss of this group, they finally had extracted the so called 'quirk factor' from the rats, which apparently, gave them superpowers like enhanced strength, speed, control over nature elements and more.

A few years ago theses strange rats started to appear in several parts of the world and quickly enough, were taken in to be studied. Soon they discovered that their strange powers came from a virus that infected them mysteriously. Nobody seemed to know where it came from.

They tried to test it on humans(many immediately offered themselves as hosts for this virus after knowing what it could do) but not even one test subject had manifested any changes. So they instead tried to research the virus, to see why it caused such things on the rats. And they had another great surprise, the virus had some kind of protein that triggered what the scientists decided to call the 'quirk factor' on the rats, thus causing these changes on them, based on deduction, they also concluded that the humans didn't have the quirk factor. Which were proven true a bit later.

Everyone had been so disappointed, the humanity had lost a good chance to evolve. Until someone asked:

"What if we extract the quirk factor and inject it on a human?" So this was what they were doing.

Well step one, done. Now for step two:

"Who wants to volunteer?" Said the boss. No one gave a step ahead. "Really? I am offering you the possibility of obtaining a superpower and you don't want it?" The scientists looked between themselves.

"Fine them, it'll have to be me" rolling up his coat, he picked up the vial and injected on himself, earning a few gasps of surprise from his subordinates. At first, he felt nothing, but then a new feeling started to burn in his entire body, pain erupted from everywhere, and he started to scream. That lasted during a few moments until the pain finally started to disappear, and he stood there panting.

The first thing he noticed however it was that his entire body was enveloped in a warm, bright light.

Thus, the first power was born, after that they did research more about the quirk factor and discovered that every(or almost every) quirk factor was distinct, allowing a different power to be born. They also discovered that if two quirk factors were within a same person, they started to destroy each other, thus not allowing a being to have more than two quirks, at least not that easily.

Another thing discovered about the quirk factor was that it was too unstable, meaning that it was almost impossible to a human to properly wield it without dying due to the DNA mutation it caused. The only way to a human to wield the power was to receive it as a child...

-100 years later-

All men are not created equal, this was the reality that every boy learned at the age of four. Because this was the age, and the only age, when a person would be officially be able to receive the power without suffering any kind of collateral damage.

Midoriya Izuku was very excited, to say the least, today was the day of his fourth anniversary, today was the day that he would receive his quirk, and start his path into becoming a hero. Granted, it would not be the greatest quirk ever, as his family could not afford to pay a top-notch quirk, but he really didn't care about that, because he would work harder than anyone ever worked to even the odds, even if by just a little.

Right now, he was on his way to the nearest quirk shop with his mom and his best friend Katsuki, which he called Kacchan. He could barely contain himself from so much excitement.

"I wonderwhatitwillbeastrenghtenhancer? Oraemmitertype?Icouldevenpickamutationtype!" He went on full mutter mode, earning him a smack from Katsuki

"Hey, stop that you nerd! It's creepy!" he said

"Sorry" Izuku smiled apologetically "It's just...I'm so excited..."

"I know right? You don't need to tell me that! Besides..." Katsuki pointed to himself "It'll be my turn in a few days, and I will get to choose a quirk much better than yours"

Inko couldn't help but smile at the deep friendship the two boys shared, before addressing them:

"Very well we've arrived, this is the place" The two boys stopped their talk and turned to look in a state of awe. The building was quite tall, having several floors, and was painted in the colors of blue and yellow, which made a rather odd combination.

"Wow" exclaimed the two boys. After a little, Izuku decided that it would be better to rush inside the building. Katsuki following right behind him.

"Wait, you don't want to get..." Inko tried to say, to no avail, the boys had already disappeared from her sight "...lost" She sighted "This is gonna be a long day" She said as she entered the building.

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"Hello! How may I help you?" Asked the shop clerk with a bright smile.

"I'm looking for a quirk for my son" Inko answered

"Which rank?" The shop clerk asked

"Humm...how much it's costing?" Inko asked just to be sure

"The rank S It's costing from 25000000* or above, the rank A it's costing between 12500000* and 25000000*, the rank B it's costing between 25000000* and 2500000*, the rank C it's costing between 250000* and 1250000* and lastly Rank D which cost between 1250000* and 500000."

*Thoses units are in yen, the official coin of JP(I think?)

Inko frowned, the money she had brought could barely pay the half of a Rank D quirk!

"Don't you have uh...a cheaper quirk?" She asked with a bit of hope

The smile disappeared from the face of the shop's clerk. After calling someone to stay in her place, she said:

"Follow me". After climbing some stars, they arrived at the third floor, which were full of vials of quirks from many colors that were arranged on several shelves. While the two boys stared in awe at everything, sometimes pointing at something sometimes stopping to look at a quirk vial(only to get scolded by Inko, which told them that if they broke one of the vials, they would pay for it). So they proceeded until they stopped by a door, which appeared to be very old. They saw the shop clerk pull a large key from nowhere and open it, only to reveal a dark room.

"Now where was that switch..." She muttered while going into the room. After a while a dull light filled the room showing several boxes full of vials from different colors.

"This is what we call the room of the forgotten" The shop clerk announced "Every quirk that is deemed useless ends up here. You could actually say that those are the rank E quirks"

Izuku was fighting the urge to cry now, he looked to his mom in hope she could explain what was happening. She looked back to him. Almost crying too...

"It's all right Izuku! I'm sure you're gonna find something useful here!" She flashed him a smile

Meanwhile, Katsuki Bakugou was almost snapping, 'what the hell? Useless quirks? What's going on here?'

"Hey Kacchan help me search! I want to find the best quirk ever!" Izuku rushed to the nearest box.

It took a moment to Katsuki to understand what Izuku had said to him and another moment to start moving in Izuku's direction. 'Izuku's is going have...a useless quirk?' Those were his thoughts as he went to help his friend to search for a quirk for Izuku 'not on my watch! He was going to find a useful quirk even if he had to take apart this whole piece of junk they called room!'

So the two boys searched...and searched...for one long hour(or more) but couldn't find one damn good quirk!

Bakugou's P.o.v

'What the heck? Those are the most useless quirks I've ever seen!' Katsuki complained to himself as he eyed tossed one vial labeled 'sharp nails' back to the box he was currently searching. From the corner of his eye he could see that Izuku was having the same luck as he was 'damn!' he shouted in his mind before he continued searching.

"Hey boys, I've got better things to do" she turned to Izuku "If you don't choose your quirk in the next five minutes, I will have to register you as quirkless" Katsuki watched as Izuku's went on hell mode, while Uncle Inko started to discuss with the old hag, 'tch, I better choose one quickly because Izuku doesn't seen capable right now' True enough Izuku's hands were shaking so much that they couldn't hold even one single vial. He would be dying of laughter...if the situation wasn't so serious...he was about to resume his search when he saw something that made his self froze. Izuku had dropped the vial. 'Damn nerd' he though as he already knew he wouldn't be to reach it.

Izuku's P.o.v

'Fast...fast..fast..I don't want to be quirkless! But I don't want a bad quirk also! What should I do...what should I do' Izuku's hands were looking like they were about to jump out from his own body. He couldn't even hold one single vial. He decided to put the vial back to the box and calm himself, at least enough to his hands to stop shaking. But something went wrong and the vial slipped from his hand...Izuku could only watch the vial get closer and closer to the floor...and remembered his mother previous warning.

'If you break one of these vials, you're gonna pay for it!' She had been saying it with a more or less teasing tone, but the words were starting to cut like sharp knifes. He closed his eyes and waited for the sound that would ruin his life forever...which never came, instead he felt something pang on his foot. He opened his eyes, the vial was intact, if only a bit shaken but intact, Izuku suddenly felt life return to him again.

"One minute" Only to fly away again...how would he choose a quirk in one minute?

Bakugou's P.o.v

A miracle, that's what happened, Katsuki wasn't exactly that type of guy but...forget it. Forgetting what he had been doing at the moment, he went near Izuku to see if he was all right...

"One minute" 'tch of course not' He then bent down to pick the vial that the nerd had dropped only to notice another vial next to some other boxes. 'Did he drop it also? No impossible' Katsuki then reached for the vial, which was in a corner that has'n been cleaned by someone for years. Now that he noticed, this entire room hasn't been cleaned, for months! There was dust everywhere. A voice suddenly interrupted his train of though.

"Time's up boy, did you choose or not?" She looked at Izuku, which was doing a Blank face. Katsuki had recently discovered an alternative way of reading Izuku's name while learning Kanji, but he had dismissed the idea, because his friend wasn't deku by any means but now...

"Hey, Deku!" He shouted real loud snapping Izuku from his currently state "Catch!" Then he tossed the vial which he had find earlier. He saw the vial bounce around Izuku's hands no...Deku's hands. 'If he falls to catch it...I'm gonna...' Katsuki's hands turned into punches.

Luckily Deku was able to at least catch the vial. And after a moment of hesitation, he turned to the old hag and stuttered:

"Y-yes" He handed her the vial. The old hag was looking between him and between Deku's, but in the end she just shrugged.

"That would be 250000 yen" Inko handed her the money, and then the old hag disappeared, muttering something about a 'book' 'quirk' and 'register'.

Izuku's P.o.v

'What the hell happened?' Izuku's mind yelled after the shop clerk left the room 'why Kacchan called me deku?' or...'what is going to be my qu...' Izuku's thoughts were interrupted by someone's hugging him, it took a while to realize that it was his mother, and also to realize that she was crying.

"...mom?" he asked confused

"I'm sorry...Izuku...I'm sorry...I..couldn't do anything..." Izuku's mind suddenly cleared.

"I..." Izuku couldn't find anything to say...so he just cried with her...

Bakugou's P.o.v

Katsuki's stood there watching that scene, wanting to somehow wake up from this nightmare, this was NOT HOW HE IMAGINED DEKU'S GETTING HIS QUIRK! Heck he didn't even know which quirk it was...Why he suddenly wanted to punch Deku's face real hard? 'Idiot'

It was then that he realized he still had one vial in his hands, the vial his friend had dropped earlier. It read:

"Quirk factor: Gender switch" Can turn into the opposite gender if splashed with cold water. Hot water changes back. Katsuki frowned. 'This is...actually not bad at all...in the best of the cases, Deku could use this one for spying' suddenly he felt something in his heart...was that... guilt? He wished he had read the vials before doing what he had done, now Deku would be stuck with a bad quirk for all his life because of him.

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Okay that's enough! Or else I'll never end this chapter Let me know if you did like the idea. I'm also open to criticism, it heps me improve the story!

Edit [02/03/20] A lot of grammar mistakes. I hope it's more readable now.