"It's better to have an early wedding." Beautiful and charming, Aoi is a Madonna at work. She is secretly dating Akagi, an elite employee in the same department, but no one knows about it. But there is one man who is in love with Aoi: Yoshino. Yoshino has an intense tendency to fantasize and has convinced himself that "Aoi is his girlfriend." Aoi feels disgusted by Yoshino's persistent advances, but one day Yoshino finds out about her relationship with Akagi. Yoshino then holds a grudge, restraining Aoi in obscene positions and tormenting her with orgasmic toys until she swears to marry him...