Naoko follows her master's invitation for an overnight trip. At a highway parking area, she urinates into a plastic bottle, then drinks her master's urine directly from his penis, collecting any spills back into the bottle. For this day, her only fluid intake is urine—an extreme practice. Her exposure gradually increases until she ends up fully naked, refueling the car at a gas station. At the hotel, they begin a reflection session on that day's exhibitionist acts, but Naoko tries to escape, resulting in punishment. Day one concludes with a series of penalties: whipping, candle wax torture, being tied to a pillar, deep throat training○, vaginal penetration, and a facial. The next day continues with extreme play—drinking urine inside the car and crawling naked on all fours through the mountains.