Uzume

The pet ferret purchased by Tina but eventually becomes attached to the one person who initially rejected having anything to do with it, Miyabi.

Its' arrival at the 'boarding house' was predictably chaotic, with its' accidentally destructive behavior causing Miyabi to develop an intense dislike for it,

Spoiler

partly because in the episode it is learned that the tough-as-nails Miyabi is secretly afraid of insects, and Uzume has a tendency to present them, cat-like, as presents to her.

from [anidb]