College student Shohei Yoshimi has feelings for Hatsumi Kurosawa, a tall, beautiful married woman who lives in the apartment next door. Hatsumi, who was sexually frustrated, also begins to develop feelings for Shohei after catching a glimpse of his erect cock. Her desire grows stronger, leading her to take bold actions. This affair with a young man more than a decade younger ignites a lewd passion in the ordinary housewife...