The 16th installment of the unique, documentary-style extreme endurance series, where women desperately hold in their pee in front of four unmanned cameras. The rules are simple: participants start with a strong urge to urinate and must endure until the timer sounds. But even after the first timer goes off, another timer immediately starts, forcing them to continue holding—this is the signature cruelty only this series can deliver. As they struggle to endure, the women share personal pee-related stories, pressing their fingers against their urethras, squirming their legs and hips in desperate attempts to suppress the urge. When the timer finally rings, they feel brief relief—only to open a box and discover, to their shock, that another timer awaits, dooming them to further suffering. Post-urination scenes are edited in dual and triple angles, and each woman's urine output is measured. Bladder distension and other physical responses are also recorded. In this volume, five women accidentally leaked, while two reached their limit and fully released. The series originated from emails with supporter A-san and continues to evolve based on fan feedback. Through these diverse and intense pee-holding performances, we aim to deliver powerful fetish appeal. All scenes feature full facial exposure.