A married woman with a demure charm and voluptuous body, Yukiko. Making her AV debut, she is filled with tension and anxiety, yet her body—unmoved for six months—begins to stir with new sensations. Surprised and bewildered by pleasures she's never experienced before, she gradually becomes aroused, reaching climax repeatedly. At first, her expression reveals the unsatisfied longing of a married woman, but soon transforms into that of a fulfilled, deeply sensual woman—an intensely erotic and striking evolution.