A former childhood friend of Kyōhei's and another Seki who was imprisoned several years before the beginning of the storyline, as he had used his doll Kuremitsuha to kill. Soon after learning that Kyōhei has left the village, he escapes from confinement and sets out for Tokyo to confront him, claiming that both are guilty of the same "sin" and believes that Kyōhei cannot live his life in denial. He previously had a relation with their sensei.