Hinako, a nurse, is married to Kichisaburo—a man prone to drunken, jealous rages who beats and kicks her whenever he is intoxicated, often forcing her into humiliating sexual acts afterward. Ashamed of her marriage, Hinako had never confided in anyone, but after the head nurse, Mayuno, spotted the bruises covering her body, she finally revealed the truth. Moved by sympathy yet simultaneously aroused by the sight of Hinako wincing in pain when the bruises were touched, Mayuno finds herself becoming consumed by a lesbian relationship with her.