In a unique and intense setup, women are placed in front of four unmanned cameras, forced to endure extreme urinary retention. This documentary-style project returns as the fifth installment of the Oni○ series. Participants already feel a strong urge to pee at the start, yet must resist until the timer sounds. Once it does, a new 16-minute timer appears, requiring them to continue holding—this is the signature cruelty of the Oni○ format. As they struggle, the women share personal pee-related stories, pressing their fingers against their urethras, writhing their legs and hips, desperately fighting the urge. When the timer finally rings, brief relief turns to shock upon opening a box revealing an unexpected twist. Cursing and trembling, they push through. Urination scenes are edited in dual angles, and those who make it in time undergo urine measurement, with bladder distension also recorded. This edition features six women who end up wetting themselves, plus one additional participant. Born from an email exchange with comrade A and shaped by ongoing fan feedback, the series captures diverse, deeply personal expressions of pee endurance, delivering a powerful fetish experience. Seven women. Excretion House.