A situation where they observe their own excretion in a mirror, simultaneously experiencing shame and self-awareness. However, they are unaware that the mirror is actually a one-way mirror, with a camera set up on the other side. Without their knowledge, their every move is being recorded as they sit on the specially designed toilet seat, squatting down to expose their genitals to the mirror in front, shamefully defecating. Their actions are monitored in real time through heart rate monitors, revealing their feelings of humiliation, excitement, and inner emotions. An everyday act of excretion becomes a complex interplay of shame, self-observation, and narcissism, reflecting the intricate psyche of young women. The anus, face, genitals, and feces—all come together, vividly captured in realistic footage. [Rin] A beautiful girl with foreign-like features. She admitted feeling slightly aroused at the thought of being watched during her excretion. Her soft, piled-up stool resembling a mountain is a must-see. [Azusa] A flustered, innocent girl. She likened her own defecation to laying eggs. She endured the act with a peak heart rate reaching 146 bpm. [Haruna] A poised older sister type with silky smooth hair. Though she answers questions confidently, visible distress is seen after defecation. The feces she produced had a remarkably sculpted shape. [Yuri] A melancholic, elegant beauty. From her perfectly shaped buttocks, twisted feces slowly emerge with a squishy sound, almost overflowing the container. (Haketsuya) ※ Facial exposure in main video