A unique project observing how intensely embarrassing and shameful it feels for girls to watch themselves defecate in a mirror—monitored via heart rate measurements. Even more intriguing: they don't know the mirror is a one-way glass, with cameras on the other side secretly recording everything. Sitting on a custom-made toilet stand, they squat down, fully exposing their genitals to the mirror in front, revealing deeply humiliating poses. Their rising heart rates reflect growing emotional intensity. What are they truly feeling as they defecate? Does shame transform into arousal? Or do glimpses of self-love and narcissism emerge? The mirror reflects the complex hearts of young women. Assholes, faces, genitals, feces—everything comes together in one intensely realistic, practical display. [Akari] A radiant, cheerful girl with a dazzling smile. She smoothly expels several firm, banana-shaped stools. Her face turns red from shyness, yet she adorably makes peace signs and heart shapes with her hands. [Ai] A cool beauty. She comments on her anal discharge, saying it looks "like rabbit droppings," perfectly formed and compact like a corndog. [Risa] Well-endowed in the buttocks. She shows playful shyness in front of the camera but pushes hard for an extended time, ultimately releasing a significant amount. [Mika] A shy older sister. Memorable for releasing soft, mushy bowel movements while dripping wet urine. She avoids eye contact in embarrassment, yet bravely answers humiliating questions—must-see footage that also showcases her strong defecation skills. [Facial exposure in main feature]