One Punch Man 2nd Season

Saitama drifts through another stretch of unchallenged hero work while a new threat emerges: Garou, a former disciple of the martial artist Bang, begins hunting heroes one by one to prove that monsters deserve to win. The Hero Association scrambles to respond, and Saitama enters the Super Fight martial arts tournament under a disguise, crossing paths with fighters and monsters drawn by Garou's escalating rampage.