Satomi lost her husband in an accident and lived with her daughter, but two months ago she started living with her married daughter and her husband. I was happy about that, but hearing the sounds of her daughter and her husband's activities at night made her body feel hot. However, she could not have a partner, and the days of comforting her with her masturbation continued. One day, Satomi had a urge to urinate on her way home from shopping and leaked at the entrance. Her son-in-law who gets an erection when she sees it. "Oh, it's your mother-in-law's fault..."
