In her third year of marriage, Yuuri lives with her husband's father at her husband's parents' house. Her days are ordinary, but she has sex with her husband about once a week. However, she is not satisfied with her husband's clumsy sex and spends her days in agony. Her father-in-law does not miss her... The evil hand of her perverted father-in-law, who loves anal, creeps up on her. The busty wife has her anus attacked in various places in the house, such as the living room, entrance, dining room, and bathroom, and is completely defeated by the domestic training.