Minami is a married woman who works in the accounting department of a company. She has been using her position to commit fraud. One day, a man notices Minami's suspicious behavior and confronts Minami. The man demands that she give him her body in exchange for keeping quiet. Minami resists, but fearing that her fraud will be discovered, she gives in. The man knows Minami's secret and Minami with her body. The man's demands become increasingly intense and perverted, and Minami, who obeys, becomes addicted to his perverted acts. The man calls her to a tatami room, where she obeys as he asks her to. After she has orgasmed and is tied up in a daze, the sliding doors open and employees from the same company pour in from the next room.