Three former bandmates—Shinji, Horio, and Yokoyama—who once aimed for professional music careers during their student days reunite for a nostalgic drinking party at Shinji's house. The home remains unchanged, evoking vivid memories of their youth. Shinji's mother, who used to warmly welcome them when they were kids, is still kind and affectionate—but all the lewd acts they imagined back then were just the boys' erotic fantasies. As past memories blend with the present atmosphere, a nostalgic and lustful night begins.