With his university entrance exams coming up, Naoya can't concentrate on his studies and spends his days masturbating. One day, his mother's friend Rie comes to visit. Naoya realizes that she's a familiar face and realizes that she's the adult video actress Yuu Kawakami! When Naoya questions her, she seduces him with her naughty advances, Yuu, obsessed with his young cock, escalates.