Forced to drink excessive amounts of water, the girls are thrust into a grueling endurance challenge where they struggle desperately to hold their bladders. Four girls compete in this intense contest, with only those who last the longest earning high scores: 1st place gets 3 points, 2nd gets 2, 3rd gets 1, and 4th gets nothing. This time, prize money is added, raising the stakes and intensifying their determination. Following King's Game rules, the four draw sticks to determine a king, who alone draws a "fun card" containing devious tasks for the other three to perform. As the game progresses, the expressions of the four girls in sportswear grow increasingly strained and distorted, clearly showing their mounting desperation and competitive spirit.