Mayuko is 26 years old, 154cm tall, 55kg, with measurements of B85 (D), W61, H88. Her blood type is A. A genuine masochist at heart, she desires to be tied up by anyone as long as they pay. Though plain-looking and slightly plump, she works seriously in caregiving. However, deep down she's wildly promiscuous, taking pleasure in doing anything, immediately agreeing to have her self-shot urination filmed in various locations. The fee was paid properly, though filming required a small portable camera, which may have been difficult depending on the location. Initially, she begged to be bound, and once tied up—even as an amateur—she felt the urge, making strained faces and pleading that she was about to leak. She was then filmed standing in the bathroom, releasing a stream of yellow urine. After that, she continued filming in her home toilet, station restrooms, shopping center toilets—her panties always soiled and wet, though it's unclear whether from mess or arousal. At her workplace toilet during a night shift, in the pitch-dark traditional Japanese-style toilet, she bravely used her phone's LED light, truly doing her best. In the end, without even being asked, she naturally defecated, letting herself be filmed defecating. Whether out of embarrassment at wiping her ass or simply because filming during wiping proved difficult, she couldn't be captured in that moment. Yet again, proving she's truly a pervert.