GAJK-022 - A schoolgirl is trained in bondage in a warehouse.She is trained in ropes by her stepfather, who has changed after losing her mother. Hikaru Natsuki's innocent body begins to feel pleasure from pain and suffering

Hikaru is saddened by the sudden death of her mother. In addition, her father-in-law, who had been kind to her even after her remarriage, began to behave strangely, and the days were painful and difficult for her. One day, Hikaru accidentally angered her father-in-law. His father-in-law yells, "This needs discipline!" and takes him to a warehouse, where he is tied up with a rope and raped. Days of training called discipline began from that day. Her reason gradually becomes paralyzed and she begins to accept abnormal pleasures...