Two years after getting married, Jun's husband was transferred to a rural area and she was living alone in Tokyo. One day, she happens to meet her old lover Non in town... Unable to let go of their feelings, the two are married to each other, but they give in to their impulses and passionately seek each other's bodies as if to fill the time they had. And even though they know it's wrong to have a twisted relationship that's different from back then, they get addicted to having extramarital sex and fall into a mistress relationship...