Plump 21-year-old college student Yu-chan loves games and niche erotic comics. On day one she receives an enema and holds it in until an accident sends even the director scrambling. Day two brings a slow natural bowel movement with dense, lumpy, strong-smelling stool that fascinates her, followed by a new toy and a warm-water enema that clears out her constipation. A close look at the anus and poop of a sexually adventurous adult willing to try anything.