Natsuko had a relationship with her lover, Ryoichi, but she was allowed to take care of Kyosuke's father Kyosuke. She was raped when she was sixteen years old. One day, knowing young young who was working at a restaurant, she came to live with her as a partner of lez. However, knowing that there was a lover who allowed the body to Akiko who thought that she was a virgin, she swore Ryoichi and insulted him. Not only that, but also to her mother-in-law, Masako, was planning devilish revenge using Ryoichi...