Izuku's unfair fate leaves him admiring heroes and taking notes on them whenever he can. Since he was a child, the ambitious middle schooler has wanted nothing more than to be a hero. This leaves the remainder of the world completely powerless, and Izuku Midoriya is one such individual. The appearance of 'quirks,' newly discovered super powers, has been steadily increasing over the years, with 80 percent of humanity possessing various abilities from manipulation of elements to shapeshifting. Meeting new allies and taking on new foes, Saitama embarks on a new journey as a member of the Hero Association to experience the excitement of battle he once felt. Saitama, who is shocked that no one knows who he is, quickly agrees. Genos proposes that the two join the Hero Association in order to become certified heroes that will be recognized for their positive contributions to society. One day, Saitama catches the attention of 19-year-old cyborg Genos, who witnesses his power and wishes to become Saitama's disciple. However, having no one capable of matching his strength has led Saitama to an unexpected problem-he is no longer able to enjoy the thrill of battling and has become quite bored. Now, Saitama is so powerful, he can defeat any enemy with just one punch. In order to pursue his childhood dream, Saitama relentlessly trained for three years, losing all of his hair in the process.

The seemingly unimpressive Saitama has a rather unique hobby: being a hero.

Anime school girl with dragon