Ten years ago, Ruri began living with her stepfather. She immediately fell in love with him, and they developed a relationship like that of biological parents. Even after her mother's death five years ago, her stepfather continued to raise her with meticulous care. One day, her stepfather changed. He was quietly carrying out a plan. This plan was to make his stepdaughter's body his own. "Your body belongs only to me…" he said, caressing Ruri's grown-up breasts, buttocks, and genitals… The gears that had begun to turn couldn't be stopped. "Daddy… I can go back… I can start over…" Was this love or lust? The stepdaughter could only accept her stepfather's twisted behavior. She could only be penetrated.