"Sensual Development Program" was the selling point of the esthetic salon, but this fact escaped the notice of gravure model Rin. Despite suspicious explanations and embarrassing questionnaires, she went ahead with the treatment in anticipation of its effects... Before she knew it, her entire body was slick with oil and massaged to sensitivity, with powerful aphrodisiac-infused oil stimulating her erogenous zones, breasts, and genitals, forcing her into sensual development. The intense pleasure left her consciousness hazy and rationality shattered! Eventually, she even sought out the next program herself. Rin learned to rub a penis against her G-spot while arching her back to reach orgasm! The escalating erotic drainage program pushed beyond its limits...
