At 27, Ai has been working in the nightlife industry since she was 19. Currently employed at a girls' bar, she enjoys a lively daily routine filled with fun. She has close female friends, plenty of male companions, and earns good money—life feels satisfying enough. However, as she grows older, she begins sensing certain limitations and starts thinking seriously about her future. One day, she starts feeling an abstract fear about a woman's "expiration date." Her unchanging daily life suddenly takes a drastic turn when an unknown man appears. Drawn into an abnormal situation of seven days of confinement, she is forced into experiences far removed from ordinary life—ones she could never have imagined. "Aphrodisiac drug sex," "home invasion rape," "creampie," "deep throat," "rape," "sister," "amateur"—Ai endures a shocking seven days immersed in crimes lurking within everyday life and overwhelmed by extreme pleasure.