Oira SukebanOira Sukeban.

Oira Sukeban (Japanese: おいら女蛮; "I'm Sukeban"), sometimes called Sukeban Boy, is a Japanese manga written and illustrated by Go Nagai, serialized in Shogakukan's Weekly Shōnen Sunday from 1974 to 1976. It is a comedy with several erotic touches, where the protagonist Banji Suke (or Sukeban) is accidentally enrolled in a new school as a girl, and he goes along with the farce. He intends it to only be temporary, but he accidentally commits to a long-term deception.