A single man arose to face the evil threatening humankind!
His name was Saitama. He became a hero for fun!
With one punch he has resolved every crisis so far, but no one believes he could be so extraordinary strong.
Together with his pupil Genos (Class S), Saitama has been an active hero and risen from Class C to Class B.
During a time of great danger, a man named Garou, who admires monsters, shows up and begins hunting heroes. And during an outbreak of monster appearances, Metal Bat faces the giant Elder Centipede. Meanwhile, Saitama has taken an interest in martial arts, so he enters a martial arts tournament.
- Many details of the cover and inner cover pages of volume 11 and 13 were included ideas and thoughts from the translator and stream audience.
- Several pages were removed from Garou's fight with Metal Bat in Chapter 58. These pages included Metal Bat rebounding the manhole cover he deflected earlier into Garou from behind.
- The original page introducing Eyesight and Vampire (Pureblood) was split into two separate pages. Both monsters were also given updated designs.
- In Chapter 61, Studless was redrawn to be replaced with Saturn Man. This is likely due to a discrepancy that Studless was hospitalized by Garou several chapters prior.