In a society where superpowers—known as Quirks—are the norm, true recognition belongs only to licensed heroes. Without the right credentials, even those with abilities are forced to stand on the sidelines.
Kouichi Haimawari always dreamed of being a hero, but with a seemingly unimpressive Quirk that lets him glide across surfaces, his aspirations never took flight. Instead, he settles for small acts of kindness—helping strangers, returning lost items—until a chance encounter changes everything.
When a brutal alley fight nearly overwhelms him, he’s saved by Knuckleduster, a rough-and-tumble "Vigilante" who operates outside the law. Seeing untapped potential in Kouichi, Knuckleduster recruits him for a dangerous mission: stopping the spread of Trigger, a drug that amplifies Quirks at the cost of human control.
Set before the events of the original story, My Hero Academia: Vigilantes follows Kouichi as he steps into the shadows—not as a recognized hero, but as an outlaw fighting to keep crime from rising to the surface.