A successful businessman is going through a mid-life crisis after his wife and daughter walk out on him. He decides to drown his sorrows in pussy. Loads and loads of pussy.
When nude pictures of girls turn up on the school's noticeboard, everyone suspects the class outcast, Kenji. Only one girl, Atsuko, defends Kenji. He tells her if she REALLY wants to support him, she'll let him fuck her. And that shit actually works.