Shun Ayase, a fifteen-year-old, harbors a unique desire not for his peers or glamorous models but for his youthful and captivating mother, Hitomi. Despite Hitomi's allure and seductive appeal, she remains devoted to her husband. Yet, given her spouse's frequent trips abroad, leaving her unfulfilled and alone with Shun, an unexpected chance emerges for Shun to explore his forbidden fantasies involving his mother.