A mysterious group called Humarize strongly believes in the Quirk Singularity Doomsday theory which states that when quirks get mixed further in with future generations, that power will bring forth the end of humanity. In order to save everyone, the Pro-Heroes around the world ask UA Academy heroes-in-training to assist them and form a world-class selected hero team. It’s up to the heroes to save the world and the future of heroes in what is the most dangerous crisis to take place yet in My Hero Academia.
It is the Taisho Period in Japan. Tanjiro, a kindhearted boy who sells charcoal for a living, finds his family slaughtered by a demon. To make matters worse, his younger sister Nezuko, the sole survivor, has been transformed into a demon herself. Though devastated by this grim reality, Tanjiro resolves to become a "demon slayer" so that he can turn his sister back into a human, and kill the demon that massacred his family.
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.
