Imagine a world where 80 percent of the population manifests superpowers, known as "Quirks," by the age of four. In such a world, heroes and villains are commonplace, and becoming a hero means learning to harness your abilities. The place to do that? The Hero Academy. But what if you're among the 20 percent born without a Quirk?

Izuku Midoriya, a middle school student, dreams of becoming a hero, but lacks any superpowers. With no hope of getting into the prestigious U.A. High School for aspiring heroes, it seems his future is on a steady decline. However, a fateful encounter with All Might, the greatest hero of all, presents an opportunity to alter his destiny.