Deku was taken by All for One he lost all memories and lost one for all. It was replace with "Hack-n-Slash" it gives him a major increase in speed, strength, and intelligence.

Villain Deku my hero academia. Midoriya/Deku finds out he has no quirk, he's one of 20% of the population, he's hurt but still has hope, until he meets Allmight his hero. Who shuts his hopes and dreams down as soon as he gets any. Then he becomes partially insane from the whole shut down and finds a quirk elsewhere. His plan? Make everyone equal, everyone quirkless, he will be the only one able to wield a quirk, the only one that deserves it. But what if he can't follow through? But what if he can?

Midoriya Izuku, a hero in training and a simple child. But after days of being bullied, pushed and "useless"; He becomes more and more depressed by the second. Izuku started being a loner and passes time in empty alleyways or streets, hoping to clear his mind. Shiragaki Tomura, a villain. Almost everyday he notices Izuku sitting alone, doing absolutely NOTHING but just sitting there. So Shiragaki decided to investigate the strange boy and what he's up to... (I do NOT own this anime or the characters in it. Same goes for the art cover) Also this is my first time writing, so don't expect it to be good