A perverted secret video targeting a female college student before her period, where a sadistic doctor exploits her slight premenstrual fever and subtle bodily changes! Stimulating the sensitive areas of the female college student without missing a beat! Rubbing her nipples, visible through her thin camisole for examination, with a stethoscope and measuring tape! Ignoring the anxious female college student and kneading her directly! Unable to resist the increasingly intense diagnosis, the female college student reaches climax repeatedly! In the end, she's thoroughly taken advantage of and even made to climax inside...