Tsumugi, a serious and kind nursery teacher, is in a smooth relationship with her boyfriend, Yuta. They were living a happy daily life, with talks of marriage already underway. However, one day, her ex-boyfriend Kenta appears as a parent. He has the looks and the attitude, but he's a typical piece of trash.
Kenta never misses a woman's weakness. He makes a fake complaint to the nursery to call Tsumugi out, successfully getting her alone. His prey is right in front of him.
Kenta makes unreasonable and forceful demands, which Tsumugi tries her best to reject. However, as her former lover, Kenta sees right through her—her true nature as a woman.
Tsumugi is gradually coerced into a self-filmed sex video, giving him leverage over her, and her body is forcibly taken. Raped one after another in high-risk locations, intense play like toy torture and choking awakens her past masochistic tendencies that were thoroughly developed when they were dating...