Sayaka is a 20-year-old reader model and female college student. Known by adults around her as a "beautiful young lady," she grew up without hardship or conflict, never defying her parents or getting into trouble with others. She had a well-regarded, straight-A boyfriend, and people often told them they were a perfect match. To her, life had always felt like a smooth, predictable path. But one day, everything changed. Facing the dark, dangerous side of sexuality that urban women sometimes encounter, her life is suddenly and completely taken from her. Seven days of confinement await—filled with aphrodisiac drug sex, unconscious rape, and imprisoned rape. Beyond imagination lies an extreme pleasure impossible to experience in ordinary life. Trapped within this nightmare, she must find a way to reclaim her life and fight her way back.