Hidemi is fed up with her selfish and violent sex husband. Yuki (his son), who has been watching the couple's activities, sympathizes with his mother for his self-righteous father's act and begins to favor him. One day, Hidemi witnesses Yuki masturbating with her panties. She passed as if nothing had happened, and when her Yuki went out, Hidemi consoled herself to dispel her frustrated thoughts. When Yuki returns home to pick up something she left behind, he accidentally sees her mother and attacks Hidemi. Hidemi accepts Yuki even though she understands that she should not cross the line. The secret with her son..., beyond the sexual depravity of her parent and child...
