Mizuki, 28 years old, is an ordinary housewife living with her husband and one child. She has always had strong sexual curiosity, and growing dissatisfaction with her recent married life has finally led her to take action—today. Standing 157 cm tall, weighing 46 kg, blood type B, with measurements of B83 (B cup), W58, H84. She's a bright, smiling girl, but her unusually high energy seems to mask underlying tension. She has sex with her husband once a week; due to their child, she can never fully let loose or make noise, resulting in consistently unsatisfying, half-hearted encounters. When asked for details, the truth is shocking: she starts with a blowjob to get him hard, then mounts him in the cowgirl position, moves her hips herself, only for her husband to climax quickly and roll over to sleep immediately. Afterward, she cleans up and lies beside him, resorting to masturbation to satisfy herself. Naturally, her sexual frustration has been building endlessly. Though guilty about cheating, she's deeply conflicted—she's a total service-oriented submissive, happiest when fulfilling a man's desires and being of use to him. She loves watching a man grow hard during a blowjob, adores the expressions of pleasure on a man's face—she's exactly the type men find irresistible. She constantly fantasizes, and her masturbation frequency keeps increasing. Now, she's reached her limit of sexual frustration. Her curiosity is intense, and she's excitedly drawn to untried experiences like blindfolds and outdoor remote-controlled vibrators, her eyes sparkling with anticipation. Though small, her breasts are well-shaped, with petite nipples that appear highly sensitive. Her shy gestures are adorable, and her body is extremely responsive—she gets wet quickly, soaking through to the point of making audible squelching sounds. When pleasure hits, she becomes breathless, losing herself completely in the moment. Though she orgasms easily, she can climax repeatedly, moaning "It feels so good!" over and over as if releasing all the suppressed moans she can't make at home. Her sensitive body is honest—every nerve exposed—"This feels good too!" "I'm cumming!"—her body jerking in spasms as she reaches climax after climax. Her ragged breathing becomes so intense it resembles someone after an all-out sprint, raising concerns if she's okay. Her first experience was at 17 with her boyfriend at the time; they kissed after three months of dating. She had a feeling it would happen on her birthday, six months later. Since her friends had already done it, she was eager to lose her virginity. She's always had a strong libido and masturbated regularly. It started when she and four female friends secretly shared a women's magazine, copying the masturbation scenes described in its erotic sections. Directing the shower stream to her pussy made her realize "This is it," and she quickly progressed from touching herself over her panties to direct stimulation once aroused. To this day, she never skips her self-pleasure, masturbating at least three times a week.