Six months after Kanako's daughter got married, the couple returned to her hometown. Kanako had been living alone since her husband's third anniversary of death, and she was happy to see her daughter and son-in-law visit. One night, when the son-in-law went to the kitchen for a drink of water, he witnessed Kanako masturbating with a vegetable. Surprised, he hid and watched her. "My mother-in-law was lonely too," he thought. That night, while he had sex with his wife for baby-making, he couldn't get Kanako's image out of his head. The next day, when the daughter went out with a friend, only Kanako and the son-in-law remained at home. Staring at Kanako's ass while she was cleaning, the son-in-law could no longer hold back and finally attacked her...