In order to uphold a Shimogamo family tradition, Yasaburou needs to do what Yaichirou could not and come up with a leisure cruiser for them to launch. He asks to borrow Yakushibou's flying inner parlor, but ends up having to make a dangerous deal with Benten.

Yasaburou gets interrupted while warming his butt and sent to convince Prof. Akadama to attend the council where the new Nise-emon will be decided. He later succeeds in his quest for warmth, but over the wall splitting the men's and women's baths, he receives an ominous apology from Kaisei; her brothers are plotting something.