Reiko Makihara, a professional from the Separation Agency (Breakup Agency), uses her sharp insight and flawless physical abilities to sever deep emotional bonds—between lovers, friends, colleagues, or even mentors. To fulfill her clients' requests, she takes on extreme assignments, such as seducing a business partner and filming explicit creampie footage of illicit acts. A woman seeking to break up with her unfaithful boyfriend hires Reiko, introducing her to him under false pretenses, leading to a night of intense passion in a hotel. Through Reiko's seduction and skill, their physical connection deepens, becoming the ultimate method to sever their tainted relationship. When a husband refuses divorce, Reiko appears before him, slipping aphrodisiac into his drink and luring him with a sweet, sultry voice. She ultimately dominates him completely, taking a crucial step toward building a new relationship.