Wife Maki feels emotionally and physically lonely as her husband is constantly consumed by work, neglecting their marriage. One day, he brings his subordinate, Sugimoto, home. Seemingly indifferent to women, Sugimoto is a shy virgin harboring pent-up desire. Maki's mischievous curiosity is sparked, and she begins seducing him. Excited by his innocent reactions, she can't resist and lures him into intimacy. Starved for affection, the two give in to passionate lovemaking. Overwhelmed by deep, aching cravings, Maki visits her husband's workplace under the pretense of delivering a meal. Once alone with Sugimoto, their uncontrollable passion erupts.