One Punch Man OVA

These short stories are part of the DVD and Blu-ray releases of the anime and were written by the manga's creator, ONE. The first one occurs after Saitama's battle with Mosquito Girl and focuses on Genos following Saitama to uncover the secret behind his power. A figure with an undisclosed motive against Saitama also appears. The other stories, with titles such as "Hanashibeta-sugiru Deishi," "Kojire-sugiru Ninja," "Gouin-sugiru Bang," "Iroiro Ari-sugiru Kyoudai," and "Fukanou-sugiru Satsujin Jiken," contain additional original content.