Officially it has crossed into distasteful ecchi with the "landing on a face" gag. Not a complaint, an observation.
They spend just enough time on the shady innkeeper that I'm happy his bar got wrecked. Vandalism is justice.
Something tells me that Rubu the demon will only be an antagonist for a single arc. She will become an ally. Possibly yuri; after all Nonoa solves problems with nudity.
It's funny that Kago has seen Nonoa get nude so much that he gets annoyed, but he's not immune to some ecchi. It's also ironic that the wolf girl is "not furry."