Two young adventurers on a thrilling quest visit new lands, unravel ancient mysteries and encounter Pokémon — and Poké Balls — they've never seen before!

In a world where eighty percent of the population has some kind of super-powered Quirk, Izuku was unlucky enough to be born completely normal. But that won’t stop him from enrolling in a prestigious hero academy. Now, he’ll get his first taste of brutal rivalry from other schools as he braves the cutthroat, no-holds-barred provisional license exam.

While putting their hero skills to use on the peaceful island of Nabu, the Class 1-A kids face a sudden attack from a formidable villain known as Nine.

All Might and Deku accept an invitation to go abroad to a floating and mobile manmade city, called 'I Island', where they research quirks as well as hero supplemental items at the special 'I Expo' convention that is currently being held on the island. During that time, suddenly, despite an iron wall of security surrounding the island, the system is breached by a villain, and the only ones able to stop him are the students of Class 1-A.