Azumi Kinoshita, whose mother remarried, began living with her new stepfather. Initially a bit uneasy, she gradually opened up to his gentle demeanor and settled into a peaceful life with her new family of three. However, one day after receiving a thorough massage from her stepfather, she started feeling something was off. That night, while she was bathing, he suddenly entered the bathroom, forcibly washed her body, and then penetrated her. When Azumi apologized, her stepfather became even more aroused and flew into a rage, demanding she submit to rape. Ultimately, she was forced into incestuous rape right beside her sleeping mother, thrust into an unimaginable and traumatic situation.