Miyako has a good relationship with her daughter and son-in-law, who live with her. All that remains is to wait for the day she can meet her first grandchild. Miyako is content with her carefree and peaceful life. But one day, her peaceful daily life is suddenly shattered when she is attacked by her stepson. Every night, her son-in-law sees Miyako masturbating and becomes aroused by it. Meanwhile, since her husband passed away, Miyako has lost an outlet for her desires and is at a loss as to what to do with her aching body. Her peaceful life and the desire before her eyes. Miyako's Kokoro is torn between the two. However, her body reacts violently to her stepson's caresses...