Having unrequited love for Yamada Ichiro, the protagonist decides to get plastic surgery in order to attract his attention. By chance, a detective teaches her the fundamentals of covert investigation. With her new skills, she discovers that Ichiro is actually a con artist who tricks women into marrying him. As she becomes depressed, all sorts of cute guys come into her life... She then finds a new goal for herself: to steal them away from their girlfriends. What will become of the protagonist as she wholeheartedly stalks these handsome men?!