Women over the age of thirty are said to have heightened sexual desire, and Shizuka is a perfect example. When we first met, she had a calm and gentle personality, but as we spent more time together, her deeply masochistic side began to emerge. She gradually started obeying my every command, transforming completely into my obedient sex slave. I kept stimulating her desires—dressing her in sexy lingerie, making her perform soap play, and pushing her limits. Recently, I've been tying her up with ropes, stuffing a gag ball into her mouth, inserting a remote-controlled vibrator, and making her walk around in broad daylight wearing a uniform. Though she blushes under the gaze of strangers, her lower body is soaked and dripping wet. Once a woman becomes this aroused, there's no turning back—Shizuka is a textbook case.