Under the rule of enduring increasing urinary pressure over time, women struggle to hold their pee in front of a hidden camera. Starting with strong urges, each woman displays a unique, individualized resistance. When the timer goes off, another timer is added (+16 minutes), but since they are unaware, their reactions upon opening the box grow increasingly intense. As they continue enduring, they share personal stories about urination, press their fingers against their crotches, twist their legs and hips, and desperately fight the urge. Relief upon the timer ending is short-lived—opening the box brings shock and disbelief, yet they keep holding while cursing under their breath, creating a must-see spectacle. Plump college girl Mizuki, after the trap is revealed, mysteriously begins removing her underwear and continues holding while spreading her legs into a wide M shape—an unusual stance. She holds a massive 800cc. Slender college girl Hana stands up, crosses her legs tightly, and writhes with erotic leg movements. Though she claims, "I can still go," her body won't stay still. Her playful, mischievous endurance rivals that of any idol. Office lady Arisa shows no real resistance and leaks quickly, yet immediately restarts her self-introduction as if nothing happened—truly fearless. Ayumi leaks while sitting in a wide straddle, pressing her groin. Once the dam breaks, the sacred stream won't stop, rapidly spreading to form a vast yellow puddle. Beautiful college girl Sana recently had a small accident. Sitting on a chair, she twists her legs tightly, crouches down, squirms, and stomps in frustration—her lovely face contorted by intense urgency. Her vitamin-rich urine totals a strong 700cc. Full facial exposure as a member of the Female Excretion Sect.