In a room equipped with four unmanned cameras, this documentary-style project features women desperately holding in their urine. The seventh installment in the Oni○ series, the participants begin the challenge already feeling a strong urge to pee. They are forced to endure until a timer goes off, and then must continue holding even after that, facing another timer—a uniquely cruel rule characteristic of the Oni○ format. As they struggle, the women share personal stories about urination, pressing their fingers against their crotches, squirming their legs and hips in a desperate attempt to withstand the pressure. When the timer finally rings, there's a brief moment of relief—only to be shocked by an unexpected outcome upon opening a box. Cursing in disbelief, they nevertheless resume their grueling endurance. With a strong emphasis on excretion themes, the main feature is filmed with full facial exposure.