One Punch Man Episode 4 English Subbed Episode Title:The Modern Ninja.Episode Description:The hard-headed criminal Hammerhead forms the Paradisers terrorist cell to demand free goods for the unemployed, targeting local business magnate Zeniru using stolen enhancement suits. While they easily defeat bicycle hero Mumen Rider, Hammerhead's men are taken out by Zeniru's hired ninja Speed-o'-Sound Sonic. Hammerhead flees after surviving a kunai stab to the back of his head, only to run into Saitama, who clarifies his lack of association with the Paradisers despite their shared baldness. Saitama easily defeats Hammerhead by destroying his suit, but lets him live and run away. Then Sonic, thinking Saitama was one of the Paradisers, attacks him, but is defeated after the ninja accidentally plants his crotch on Saitama's fist. The ninja quivers in agony and retreats, but not before declaring Saitama his eternal rival. That night, as Hammerhead turns over a new leaf after the owners of the stolen suits nearly killed him, Saitama sulks over his lack of recognition as a hero before Genos suggests they join the Hero Association.