After the stressful Stage 7, Paca allows the players to take a day off and recommends the open-air hot spring on the 30th floor of the Genome Tower. When the boys head together though, they find Paca bathing there in a suit and promptly kick him out. This prompts Paca to switch the wooden signs of the men's bath and the women's bath on the doors in retaliation, causing Karin and Yuzu to enter the men's bath instead believing that it is for females. Yuzu notices the boys' presences behind a large rock due to the water movements, but declines to tell Karin about it...