The appearance of "quirks," newly discovered super powers, has been steadily increasing over the years, with 80 percent of humanity possessing various abilities from manipulation of elements to shape-shifting etc. The 20 percent of mankind who do not possess a power are called "quirkless", and are usually looked down on upon the supernatural community. Academies across the globe train their students to learn to fight crime with their powers. Izuku Midoriya, a boy born without any powers, dreams of being able to become a super hero too, but gets bullied for his unrealistic dreams. One day, his fate changes in an unexpected meeting with the no.1 hero all might, and he is given the chance to become his successor and inherent one for all, a quirk with a dark history, which is passed down from successor to successor, who cultivates it with their own power and passes it on, to defeat it's brother, all for one.