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Gravure model Rin comes to the salon without knowing that its selling point is the "sexual development program". Despite the suspicious explanation and embarrassing questionnaire, she decides to undergo the treatment, hoping for the results... Before she knows it, her whole body is covered in oil and her sensitive body is massaged, and even her erogenous zones, such as her breasts and genitals, are stimulated with powerful aphrodisiac oil, forcing her to develop sexual sensitivity. She loses consciousness from the pleasure and loses her reason! In the end, she asks for the next program herself. Rin learns to cum by rubbing a penis against her G-spot while leaning back! The escalating erotic drainage program pushes her limits... Show more...