limitless

izuku midoriya gets granted full access to his brain, making him far more smarter than even nedzu himself. there's no side effects to it and he has the ability to use it every single day of his life without the help of quirks. He then goes to become a vigilante and soon, nedzus personal student.

Dadzawa and uncle might because why not?

(based on the series 'limitless' on Netflix)