One-Punch Man Season 2

The third season of One Punch Man . 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. Alongside Genos, his faithful disciple, Saitama performs his official hero duties as a member of the Hero Association. One day, monsters claiming to be from the Monster Association suddenly appeared, taking a child of Hero Association executive hostage. The S-class heroes gather and plan a raid on the Monster Association hideout to rescue the hostage. Meanwhile, Garou, a "human monster" who was taken by the Monster Association during a battle with the heroes, awakens in the Monster Association hideout. Note: Excludes recap episode that aired a week before regular broadcast.

Saitama has a rather peculiar hobby, being a superhero, but despite his heroic deeds and superhuman abilities, a shadow looms over his life. He's become much too powerful, to the point that every opponent ends up defeated with a single punch. The lack of challenge has driven him into a state of apathy, as he watches his life pass by having lost all enthusiasm, at least until he's unwillingly thrust in the role of being a mentor to the young and revenge-driven Genos.

Note: Unaired episodes included in the Blu-ray/DVD.

Specials included in the DVD/BD volumes of the anime. They feature original stories written by the series' mangaka, ONE The first special is titled "Shinobiyori-sugiru Kage" and takes place after Saitama's fight with Mosquito Girl, and it follows Genos as he is persistently and suspiciously prowling after Saitama trying to find out the secret of his strength. Additionally, a mysterious person appears who has a "certain reason" to hold a grudge against Saitama. 2: Hanashibeta-sugiru Deishi 3: Kojire-sugiru Ninja 4: Gouin-sugiru Bang 5: Iroiro Ari-sugiru Kyoudai 6: Fukanou-sugiru Satsujin Jiken