Yumi Kazama, the main character who used to work as a secret agent. Currently, she is married and lives a happy family life as a full-time housewife. However, one day, through the command speaker at home, a sudden mission came in from the boss when he was an agent. Since it is a mission that cannot be solved by an active intelligence agent, he asks Yumi if he can make a temporary comeback by making use of his past experience as a peculiar person in the sexual arts. However, Yumi didn't feel like going back to the field, but she was worried about the fact that her former colleague was arrested, and she reluctantly decided to help out as a part-time worker.