I think 'totoro' aren't actually a thing.. I think it's just the kami's name, and not its species. Totoro is the kami (god/guardian) of that tree/forest/mountain and the smaller ones are its helper spirits. Kinda like Oinari. Oinari is not a fox themselves, they've been known to transform into men, women, spiders and dragons, but never foxes. The foxes are Oinari's messengers/helpers.
I'll use they/them for Nanachi.. juuuuust in case. oxo That and we already have a cross dressing boy, so a androgynous/non-binary character wouldn't surprise me. .. Also.. who knows if there are rabid fans here... o-o rabid fans are scary... QAQ
https://www.tiktok.com/@demonskiddk?lang=en
FISHIES! >:3 I made a tiktok for mah petz. o3o ... let's see how long I can do this for. x'D