Jun, a married woman living an ordinary married life, felt that the distance between her and her husband was growing day by day. There was no foreplay during their nightly activities...they no longer said "I love you"...and not only sex, but even kissing had disappeared. Then, one day, her husband invited his classmate Yosuke over to their house for dinner. Yosuke had confessed his love to Jun when they were students. As the alcohol flowed, the moment my husband went to the bathroom, he suddenly took my lips...I was overcome with a numbing sense of immorality...