Rinko has become accustomed to living with her husband for half a year after her mother-in-law died. One day, her brother-in-law, Bunta, suddenly came back ... Rinko is disgusted by her raver Bunta, who invites her every time, but she is swept away by an overly persistent approach and ends up having a relationship with her. She repeats her climax to her caress that stimulates her woman's acupoints, unlike her selfish husband who has a peculiarity. Rinko, who forgot her self for her first time in her life, continues to be nagged by her brother-in-law's invitation to approach her relentlessness.