What would the world be like if 80 percent of the population manifested superpowers called "Quirks"? Heroes and villains would be battling it out everywhere! Being a hero would mean learning to use your power, but where would you go to study? The Hero Academy of course! But what would you do if you were one of the 20 percent who were born Quirkless?

A new player emerges in the underground world of villains in the form of the Meta Liberation Army. Led by the CEO of the Detnerat Corporation, the MLA is preparing for a new metahuman revolution. In their eyes, the League of Villains is an obstacle to be removed, but Tomura and his band of miscreants aren't about to go down quietly. It's army versus league in all-out war, and dominance must be established.