After losing her husband, Mizuki decided to live with her daughter and son-in-law. Her daughter and son-in-law welcomed Mizuki happily, and the life of a three-person family began. As usual, the daughter and son-in-law started their intimate activities. Mizuki secretly peeked again and masturbated while watching them. On the day her daughter went on a trip. Mizuki noticed her son-in-law's movements and found him alone stroking his crotch in his room. Mizuki pretended to enter his room by chance. She smiled gently at the embarrassed son-in-law and said, 'It's okay,' then asked softly, 'Shall I help you?'
