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?

The terrifying fusion of Tomura and All For One now seems unstoppable. Since the villains have the upper hand, even the president of the United States is considering the unthinkable--capitulating to Tomura. But Mirko, Edgeshot, and Jeanist are still on the scene, holding on for dear life. The heroes' big plan was always to pit Midoriya against Tomura, and when the young hero finally arrives and sees what's happened, all bets are off--Midoriya's ready to face his deadly rival!