On the day of the sports festival at a prestigious girls' school, a hidden camera was set up inside the school toilets. The footage captures girls rushing into the restroom, sweating and exuding a sweet-sour scent, pulling aside their damp underwear. Unaware of the camera's presence, they lower their bloomers and undergarments, exposing their still youthful crotches, with clear images of them urinating and defecating. Their natural, uninhibited actions are vividly recorded, highlighting their purity and innocence.