Chapter 1 - Calculations

Izuku Midoriya had a dream, like many other middle schoolers, he wanted to be a hero, like his idol All Might, saving people with a big smile. In this world 80% of the population have some kind of ability, a quirk, some of these people use their powers to help and save others, those are known as heroes, it is a genuine line of work, some do it for the money, others do it for the fame and attention, but there are genuine heroes who do it for the sake of helping others, Izuku belonged to the third group, he was gonna be a hero no matter what.

Like all the other children, Izuku expected his quirk to appear by the time he was five, but it didn't, no one understood why, his mother took him to the doctor for a check-up, there was nothing wrong with his body, a quirk was supposed to be developed by now.

"Miss Midoriya, there is nothing wrong with your son." said the doctor while looking through Izuku's file "There have been cases of people whose quirk developed later in their life, we call them 'Late Bloomers', we believe your son is one of them." the doctor explained.

"How long would it take for it to appear?" questioned Inko Midoriya, Izuku's mother.

"I'm not sure, it might take 5 or 10 years, but there is one thing that late bloomers have in common, their quirk tend to be extremely powerful." explained the doctor who for some reason put emphasis his last words.

9 YEARS LATER

Still no sign of a quirk, Izuku was still hopeful, he knew it would appear eventually, but no one but his mom believed him when he said he was a late bloomer, his former friend turned bully, Katsuki Bakugo, thought that Izuku was just lying, trying to hide the fact that he was quirkless, he gave the green haired boy the nickname 'Deku' which is a different reading of Izuku's name, which means useless, due to Katsuki's constant torment other children got into it as well, by now Izuku was known by his classmates as simply Deku, the useless one.

But that did not stop him, he was preparing himself, often making annotations about heroes and their quirks, he need a lot of information on hero work, since everyone else would have an advantage over him when it comes to quirk usage.

Something did change in the last few weeks though, Izuku realized that math and physics, subjects that a lot of his classmates would grimace at, had become incredibly easy for him, one time he solved every problem in his mother's old college calculus book in about 15 minutes, which greatly surprised her. 'Is this my quirk?' Izuku thought 'But how does being better at math helps me with hero work?'.

As the days go by, Izuku's calculations got faster and better, he would often find himself calculating things other people would not bother with, like the way gravity was affecting everything in the world around him, the amount of force generated by simply stepping on the ground, the equal amount of force the ground would send back to the person stepping on it, everything around him had numbers and calculations involved, and Izuku was taking all in as easy as breathing. Anyone looking at Izuku right now would think he's simply spacing out, but in his head, the amount of equations and results he would process would make any mathematics professor head explode.

'What could this mean?' Izuku was now sure that it wasn't something normal, he had gotten used to the calculations by now, he was doing most of them automatically, he would only need to stop and focus if he came by something he could not immediately understand, it would often happen when people used their quirks around him, especially his mom's. There was something about her quirk, whenever she used it, Izuku could almost feel he could do the same.

He was sitting at his desk right now, the only thing on top of it was a pen, Izuku had his right hand in the air directly above the pen, trying to pull it towards it, the pen did not move an inch, calculations going off on his head, but never reaching a result, he was getting frustrated, he eventually gave up.

"Why is it not working?" Izuku's calculations wore telling him he could move the pen, but it did not "My calculations are never wrong, what am I missing?" Izuku was trying to find an answer, getting more frustrated when he wasn't getting any, until in his frustration he tapped his left hand on the desk, that did something, that simple act made the numbers go crazy on his head, he stayed there for a few seconds until he got it, he had reached a result.

Izuku tapped his hand again in the desk, something different happened this time, he did not feel any impact nor the pain one would normally feel when tapping a solid object, it was like his hand was sitting at the desk from the very beginning, and the pen? It did something that surprised Izuku, it went up in the air, it went up above his head until it fell down back to the desk.

Izuku stood there for a few seconds, gawking at what had just happened, he thought about it for a minute until he did it again, the same thing happened, now that he got the equations and the results he figured he could test it out, he changed the values of the equations effectively changing the results, he tapped his hand one more time, the pen went up faster than before, it only stopped when it had hit the ceiling, Izuku had used the same amount of force on his tap and got different results, that confirmed it.

"...My quirk…..my quirk….I have a quirk" Izuku had never been happier, he could finally start working on his dream.

A/N:

Ok, this is my first story, I welcome any review and criticism. For those who did not understand Izuku's power, I'm giving him Accelerator's ability, for those who do not know, look up "A certain magical Index" , or search up 'Vector Manipulation', that will give you guys some idea of what Deku will be able to do. I will try not to make him too OP from the beginning, he will have to work his way up, but by the end he will probably be as powerful as Accelerator was before he got shot in the head.