The fourth installment in the series featuring office ladies in suits drinking large amounts of water and enduring the urge to pee. There is no elaborate scenario—only the simple instruction to "hold your urine while sticking your butt out." The video begins with questions about their urination habits, such as how many times they go to the bathroom each day, while making them assume a toilet posture. Their embarrassment and anxiety are clearly visible, especially since they're already caught holding it, creating a realistic portrayal of the clash between bodily need and shame. Soon, it becomes a so-called "pissing endurance contest," where they must maintain the butt-out position while struggling to hold on. The contractions of their sphincters are vividly captured—twitching buttocks drawing viewers in as the limit approaches. However, endurance always has its limit, and eventually, they release their urine. The sight of urine filling the container placed in front of them is depicted in a way that intensifies their humiliation, performed by eight female members of the Female Excretion Sect.