21 girls are persuaded to defecate in a traditional Japanese-style squat toilet. However, four hidden cameras are installed in the toilet for filming, capturing their completely unfiltered and real actions—ironically turning a space meant for privacy into one of total exposure. With no one else around, their most natural behaviors emerge. Some defecate while completely naked, others reveal their unique personalities through the way they wipe. Some become aroused in front of the camera, dripping vaginal fluids. Each girl’s distinct expressions and reactions create a vivid, diverse array of bowel movements. Their deeply embarrassed, never-before-seen defecation scenes are a must-watch.