pffft, Nurarihyon's too much of a fool to be freaked out by anything. Their meeting would be an amusing one for sure.

Nope, he can have as much emotion as he want. It's just that Hagoromo Gitsune ate it up when he saved his (future) wife from her. Haha, people wouldn't see him until he speaks (it's sort of an attention-sort-of-invisibility, of sorts). XD