S1·E9 Kaisei, Daughter of Ebisugawa

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.