Was the names of the hot springs in ep8 of Gugure! Kokkuri-san a joke/reference to another anime? While searching for the hot spring that can turn him back into male, Kokkuri-san passes several other hot springs. I got the feeling from watching the show that they were giving a shout-out to / parodying other anime shows.

What were those shows?
I noticed these two signs:





To me, that's a clear reference to the classic Ranma 1/2, as that series features a male protagonist who fell into a cursed spring, which made him turn into a woman whenever he got splashed with cold water. His father likewise received the same curse and turned into a panda after falling into a different spring in the same area.