Misa lives alone with her son while her husband is away for work. As her son grows more independent, she begins to rediscover herself as a woman. Loneliness leads her to secretly pleasure herself, but one day she's caught by her son's friend. Sensing her pent-up desire, he takes advantage and forcefully seduces her. Long-forgotten lust stirs within her, and though hesitant at first, she's soon overwhelmed by his youthful passion. Before long, she's writhing in ecstasy, eyes wide open, completely surrendering to the intense pleasure.