GAJK-022 A schoolgirl is tied up and trained in the storehouse. Her stepfather has changed since he lost his mother, and now trains her with rope. Her innocent body begins to feel pleasure from pain and suffering. Hikaru Natsuki - Natsuki Hikaru

Hikaru is overcome with grief after her mother suddenly dies. Furthermore, her stepfather, who had been kind to her even after her second marriage, has begun to act strangely, and her days are filled with hardship and hardship. One day, Hikaru accidentally angers her stepfather. He yells, "You need to be disciplined!" and takes her into the storehouse, where he ties her up with rope and rapes her. From that day on, her days of training in the name of discipline begin. Gradually, her reason becomes numb, and she begins to accept abnormal pleasure...