The ninth installment of the extreme version, filmed in a room equipped with four unmanned cameras, documenting women desperately holding in their urine in a documentary style. From the start, the women already feel a strong urge to pee, forced to endure until the timer goes off. Even after the timer sounds, they must continue holding until a new timer rings—this relentless rule is a hallmark of the extreme version. As they struggle to suppress their urges, they share personal stories about urination, pressing their fingers against their cunts, flailing their legs and hips in desperation. When the timer finally rings, there's a brief moment of relief—until they open the box and are shocked by what they find. Despite cursing aloud, they continue enduring. The pissing scenes are edited from two angles, and for those who make it in time, urine volume is measured and bladder distension is recorded. Their diverse, intense expressions of urinary desperation evoke a powerful fetishistic appeal. The main footage is recorded with full facial exposure.