Anna Kuramoto is forced to take laxatives by her despised coworker, Sakata, a scat incontinence fetishist, leaving her tormented by intense bowel urgency. Sakata desperately tries to prevent her from reaching the toilet, hoping to witness her defecate. Eventually, Anna loses control and spills diarrhea on the office staircase, creating a powerful stench, forcing her to obey Sakata's demands. Meanwhile, Sayaka Ichinose, having accidentally overdosed on laxatives the night before filming, suffers unbearable diarrhea and involuntarily defecates before the shoot even begins, captured in a documentary-style recording. Later, after being hospitalized due to a fracture, Anna struggles with urgent bowel movements but cannot reach the toilet due to leg pain, resulting in an even more tragic and devastating accident.