He was only breifly scene in the previous season. In this post-credits scene, it’s revealed that Garou was one of the antagonists who attended the Hero Association’s meeting in which they extended help . Garou is observing the sheet with all of the details of the impending doom, and all he can do and smile at how fun the sadistic prospect of a world-ending event will be.
Garou gives the series a chaotic aura He’s out to tear down the entire hero world, and soon fans will be seeing just what he will do. The most anticipated fight of the season is how Saitama will measure up to this infamous Garou, and if it’s anything like the manga, it certainly will be something to see.
Saitama is a hero who only became a hero for fun. After three years of “special training,” he’s become so strong that he’s practically invincible. In fact, he’s too strong—even his mightiest opponents are taken out with a single punch. Now, the great seer Madame Shibabawa’s prediction about the Earth being doomed seems to be coming true as the frequency of monster incidents escalates. Alongside Genos, his faithful disciple, Saitama begins his official hero duties as a member of the Hero Association, while Garou, a man utterly fascinated by monsters, makes his appearance.
One Punch Man season 2 is available to watch on the net.