Haruka Sakura has no interest in weaklings, only the strongest fighters. Starting at Furin High, a school known for student brawlers who protect their town, Haruka seeks to battle his way to the top.

After being left for dead, Denji turns into a devil-human hybrid with chainsaw powers, and gets recruited into a governmental devil hunting agency.

When a genocidal cult targeting Quirk users plants bombs around the globe, the Heroes must locate and disarm the devices — before time runs out.