Iwao Oguro/Synopsis

History
In the past, Knuckleduster was a Pro Hero known as O'Clock. During his time as a Hero, he took on a pupil. In China he was known as Ciupan Seikyun (Hyper Quadfist). His career as a Pro Hero came to end after his Qurik was stolen from him, his face was split open and was presumed dead. After an unknown amount of time passed following the incident, his relationship with his daughter, Tamao, was strained after she expressed her desire to become a musician only for him to yell at her in protest and told her to stop hanging out with those group of friends. This ultimately caused her to leave home. Following Tamao's sudden departure, Knuckleduster's wife was hospitalized and is currently unable to speak properly. In an effort to track down his missing daughter, the former Pro Hero, becomes a Vigilante.