[Kuzu Kanri System (Kuzukirimoti)] Midoribashi Sumire Tadaima Unko Gaman-chū

A nervous schoolgirl with a ponytail and white polo shirt clutches her swollen belly, shouting she doesn't need to poop, while sweat drips from her flushed face; she darts through a gym and hallway pursued by a calm classmate urging her to the bathroom, tension mounts, then she has an explosive release that splatters the floor, laughs it off, and resolves to always go to the bathroom when the urge hits.