[Reducing Mosaic]GAJK-022 A high school girl bound and trained in a warehouse. Days of being rope-trained by her stepfather who changed after her mother's death. A pure body that begins to feel pleasure in pain and suffering. Nakatsuki Hikaru

Hikaru was plunged into sorrow by the sudden death of his mother. Furthermore, his stepfather, who had been kind even after remarrying, began to act strangely, and harsh days continued. One day, Hikaru accidentally angered his stepfather. 'You need discipline!' shouted his stepfather, dragging him into a storeroom, tying him up with rope, and raping him. From that day on, the days of so-called 'discipline' training began. Gradually, her reason became numb, and she came to accept abnormal pleasure…