The Big 3, the top three students of Yuei's final year, come to present Class 2-A with an optional activity: heroic training. To better illustrate the gap between them, Mirio, the school's number one, challenges them to a general brawl and knocks them all down in an instant!
Motivated like never before, Izuku decides to take on the adventure, and he begins his internship with Night Eye, All Might's former partner. But his first mission takes an unexpected turn when he crosses paths with Kai Chisaki...