Jun, a married woman who lives an ordinary marital life, felt that the distance between her husband and her husband was getting farther day by day. In the night life, foreplay disappears ... The words I love you are gone... And not only SEX but even kisses are gone. One day, my husband invited his classmate Yosuke to his home for a meal. Jun had a past that was confessed to Yosuke when he was a student. As the drinking progressed, the moment my husband went to the toilet, my lips were suddenly taken away ... I was struck by a numbing sense of immorality ...