A forbidden story between a private tutor and her student named Ai. Recently, the tutor has noticed that Ai, despite being in class, behaves in a seductive manner with her immature body. She always attends lessons without underwear, wearing a confident, teasing smile. Troubled by her actions, the tutor begins asking her blunt questions like, "Do you masturbate alone?" and "When did you first have sex?" These words deepen their connection, as Ai continues to entice him with her fair, smooth skin and voluptuous breasts. In this way, the hidden sexual tension between them steadily grows.