Recently remarried, Kahori is a busty woman whose husband, Takashi, has moved to the city to prepare for his college entrance exams, leaving her to endure a sexless life in his absence. One day, she accidentally discovers Takashi masturbating during a study break. The sight of his perfectly erect cock ignites her pent-up desires, unleashing a surge of uncontrollable lust. Unable to resist any longer, Kahori begins craving a new, intimate connection with her husband.