A married woman named Shoko seeks infidelity, troubled by the lack of intimacy in her marriage. Desiring recognition from her husband as a woman, she remains uncertain how to regain his attention. Noda, her husband's secretary, has secretly fallen for her. One day, Noda loses control and takes Shoko's chastity. Unaware of his wife's inner turmoil, her husband remains indifferent, leaving Shoko to succumb to loneliness and gradually accept Noda's advances. Unaware of her husband's betrayal, Shoko continues to indulge in the thrilling pleasure of her new affair.