12 Absorption in BHNA

So, to start off, yes it's BHNA, but to be fair I had thought of this way back, before it was super popular. Now, you're probably wondering what exactly I mean by absorption. Well, before that let's get a little bit of story out of the way. I swear you'll love his powers.

So, obviously, this is either going to be a reincarnation or inserted character. Either way, we start off with the childhood. Now, this can go a couple of ways: He could be born in the same neighborhood as Izuku, go to school with Momo, or he's born in a different country and brought back with All Might. Not to say that All Might passes on One for All to him, just that he sees potential in him and brings him to his alma mater. Okay let's move on to his Quirk.

The MC's Quirk is the ability to absorb, store, change and redirect forms of energy. What does that mean? Well, say you punch him, with all your strength. He'd absorb the kinetic energy and no damage would be done, he then stores it and finally changes it into heat energy, expelling it back at you in the form of fire. Now, if there's too much energy to store, he can redirect it away from himself, expending stamina equal to what he's redirecting. Now, he can continually absorb and save energy to be released all at once, in the form of whatever he chooses, creating a massive explosion. He can also use kinetic energy to augment his punches and kicks to cause more damage. That makes this ability similar to One for All, aside from not being able to stockpile, although his limit will grow as the power is used.

So, this sounds like it's already pretty overpowered, and it is, but obviously it doesn't start off like this. When he first develops it, he should only realize the absorption aspect, and not know about the rest. Just the absorption wouldn't make for a Quirk meant for hero duty. But as he grows older, he slowly stumbles upon the other powers that his Quirk has, and begins to train various martial arts as to improve his odds of becoming a Hero.