Her name is Akiko and she is a single parent who loves a good time for a youthful student. He needs her. She needs men. In particular, he needs sex and consideration from men and practically any man would do that, occasionally Shuhei’s kid doesn’t get the consideration he needs. The men go back and forth, the joy is given and gotten and all is well until one day a major bloodstain shows up on Shuhei’s garments. He slaughtered his grandparents.