The masochistic fetish makes the body indulge in pleasure, and interest in being bound turns into desire! "One day, I caught my mother and stepfather having SM sex and couldn't help but peek. Seeing my mother's ecstatic expression while being tied up, I felt an unusual excitement and masturbated. While my mother was out, my stepfather scolded me for peeking and punished me. This became the trigger for training, and Mai falls into becoming a rope slave●..."
