Toshio, a man accustomed to brothels, is stunned when the innocent Iris appears and pleads for his guidance in the art of pleasure. Eagerly accepting, he takes the virginal young woman under his wing, meticulously instructing her in every sensual act. Their lessons quickly become intensely intimate, as Toshio’s experienced hands and mouth awaken Iris’s body to waves of ecstasy, forging a deep and carnal bond between teacher and eager student.