Pantypooping refers to the act of defecating while fully clothed. Ryouka Dan, having experienced soiling herself on a train, became captivated by the unique sexual arousal she felt amid shame, humiliation, and discomfort, leading her to desire filming her own incontinence experiences. The process begins with a disposable enema, introducing liquid into her anus, after which she wears underwear and resists the urge to defecate. The glycerin stimulation induces bowel movements, depicted as her white underwear and stockings become soiled. Feces accumulate inside her panties, and as she traces them with her fingers, her breathing grows heavy. In the privacy of a room, she first uses an enema with a pink swimsuit, filling the crotch with brown feces, then masturbates while touching her genitals in this soiled state. Next, she wears a cloth diaper for the first time, shown struggling to put it on while suppressing defecation. The diaper swells with feces, drawing intense focus. Additionally, 500cc of lukewarm water is administered via enema to cleanse her intestines, with a special nozzle circulating the liquid inside her colon. She then expels this lukewarm water into a paper diaper. Finally, a syringe enema is used, during which she attempts oral sex to induce ejaculation, but fails—ultimately soiling her underwear with feces in the end.