Mitsuko, who had been living alone in the countryside, decided to live with her son and his wife in the city. Although her previous life was lonely, Mitsuko was thrilled to be living with her son and his wife. Half a year into their cohabitation, they seemed to have found a good balance. Just then, Mitsuko was pushed down by her son. As she aged, Mitsuko's sex drive grew stronger, and she would masturbate every day. Her son had seen this. The son roughly caressed Mitsuko and penetrated her. Although Mitsuko showed reluctance, the son did not stop and eventually ejaculated outside her body. A few days later, Mitsuko was confided in by her daughter-in-law that they had been sexless recently, and Mitsuko was confused, thinking it might be her fault. Just then, Mitsuko's period ended...
