Kaoru, 38-year-old housewife. Married for 11 years and mother of two, she lives an ordinary daily life. Her sensitive body reaches orgasm instantly upon penetration, which has become a source of concern. Since she gets satisfied too quickly, she often has to continue until her husband finishes, leading to mismatched arousal levels and awkward moments. But this premature-ejaculation-prone wife craves overwhelming passion that doesn't fade after just one climax. Embark on a thrilling adventure into a new world of sensuality with her.