Four unmanned cameras capture a unique documentary featuring sisters in casual clothing desperately holding in their urine. Starting with strong urges, they are forced to endure until a timer sounds. The highlight is watching them squirm restlessly, twisting their bodies uneasily while sharing personal stories about urination. Their frantic movements—jerking legs and hips—portray a raw, realistic struggle to hold on. When the timer finally rings, they begin releasing the pent-up urine, followed by measurements of the volume expelled. Their bloated stomachs and physical conditions are shown in detail, with only minor censorship. A new rule is introduced: participants must open a box after the timer to receive the next instruction, making the footage even more intriguing. Pissing scenes are edited in dual angles for better viewing. This edition also includes two accidental leaks. The main feature is recorded with full face exposure. (Haisetsuya)