A young and beautiful Kaho and her remarried husband were spending happy days every day. However, even in her seemingly smooth home life, there are real faces of her husband's unknown family members. At the beginning of her marriage, her husband was extremely busy and had a period of frequent business trips. Unable to bear the loneliness of her husband's absence when she wanted to be with him the most, Kaho made her mistake by making a one-time promise to her son-in-law Koji. However, Koji, who can't forget her Kaho's body that she knew once, began to demand it violently even if her father was nearby.
