Shortly after her marriage, Yuki achieves her dream of starting a new life with her husband. However, she is blackmailed by a male coworker who discovers her secret, forcing her into submission at the office. On the other side of the wall are her husband and other employees—exposure is unthinkable. While being taken by someone other than her husband, Yuki stifles her moans, enduring hellish humiliation, yet gradually begins to feel pleasure in the thrill of it all. A dramatic tale unfolds as new emotions and inner conflicts intertwine.