Sanae works at a major trading company and is in her third year of marriage. Although she has sex with her husband, it's a selfish, one-sided relationship where only he is satisfied. Carrying her sexual frustration, she goes through each day longing for fulfillment. The gap in her heart had been filled by her department chief. During lunch breaks at a city hotel, she found emotional and physical relief as the chief brought her to climax again and again. But today was different! Instead of her usual chief, her incompetent subordinate—who always mocks and belittles her—shows up. Reluctantly, and with her shame stoked to the limit, she follows the chief's orders and gradually becomes enslaved by pleasure. Witness this married woman's affair, along with the intense passion of her body and the trembling emotions within.