For his entire life, Izuku has dreamed of being a hero—an ambitious goal for anyone, but an especially challenging one for a boy without superpowers. That’s right: in a world where 80% of the population has some sort of special gift, Izuku was unlucky enough to be born completely normal. But that won’t stop him from enrolling in one of the most prestigious hero academies in the world to learn what it truly means to be a hero.
Inspired by a small-statured pro volleyball player, Shouyou Hinata creates a volleyball team in his last year of middle school. Unfortunately the team is matched up against the "King of the Court" Tobio Kageyama's team in their first tournament and inevitably lose. After the crushing defeat, Hinata vows to surpass Kageyama. After entering high school, Hinata joins the volleyball team only to find that Tobio has also joined.
In a world plagued by creatures known as Kaiju, Kafka Hibino aspired to enlist in The Defense Force. He makes a promise to enlist with his childhood friend, Mina Ashiro. Soon, life takes them in separate ways. While employed cleaning up after Kaiju battles, Kafka meets Reno Ichikawa. Reno's determination to join The Defense Force reawakens Kafka's promise to join Mina and protect humanity.
