Tired of poor grades, students Tanaka and Yamada are invited to an intensive study camp at their teacher's house. However, Tanaka becomes instantly captivated by the teacher's wife, Ritsuko, mesmerized by her beauty and sensual charm. One day, Tanaka fakes illness to be alone with her, and overwhelmed by passion, he makes his move—pushing her down and giving in to desire. Lonely and starved for affection, Ritsuko's body reacts intensely to his touch, resisting at first but ultimately succumbing to his fervor. Just then, Yamada arrives...