i like invertebrates a lot but i do feel like theyre mammals and probably felines… perhaps my cat bias but it feels right.

My friend suggested civet for rinu once upon a time and i didnt know about them but i think it makes sense. doc has pallas cat energy.

i think in general traits, doc is withdrawn and cynical, but not hostile—not the kind of animal that can’t get along with other animals, but one that generally chooses not to. likely to stick with one mate or small group. primary defense is hiding, running away, or appearing threatening; doc’s rocket launcher always makes me think that she’s kind of crappy at fighting and just chooses the biggest most aggressive thing to get it over with quickly LOL.
with the name pun (doku) and motif i think it would make sense for her to be poisonous.
because she’s also like kind of popular or a celebrity i think an iconic, cute-seeming animal makes sense. the kind of animal that shows up in memes, and you think, “so cute, i want to keep it as a pet,” and then you find out it is a vicious predator and not cuddly at all.
so it’s hard to think of anything that isn’t a wild cat, and since pallas are grumpy-looking, it’s an easy sell.

i think of rinu as being more well-adjusted and social than doc, but also more cunning and not above manipulation. where doc would run away or fight in a conflict, rinu would rather find a way “above” it. she’s physically capable of fighting but it isn’t her strategy.
i could see her as an animal that uses mimicry to blend into a pack, or one that has a mutualistic relationship with other species. she might also be a kind of parasite HAHA.

though i think theyre similar heights and fairly tall (around 5’9”) i can’t imagine them as large animals.

Anyways! my thoughts. thank you for asking :)