Shintaro and Nagisa got married two years ago. However, her husband was laid off and lost his job, leaving them in financial difficulty. Meanwhile, Nagisa begins to do something. That is, a mistress contract with a man who becomes... She is paid by having sex with a man she once met. Nagisa has decided to sell her body to make a living. However, although she feels guilty towards her husband for having an affair with the man, her desires react lustfully. This is the story of a wife's NTR day.