Clara

Clara takes the form of a small dog that looks to be of a Maltese breed. She has very light brown fur that is groomed to near perfection along with thick eyelashes. It's implied Yoshie spoils her a ridiculous amount as Clara sports a light purple and white bow on her head along with, what looks like to be a very expensive, white a pearl collar.

Clara is noted by Ren for her straightforward and stubborn personality. She will often stop Aoba in his tracks just for a chance to see Ren and ask how he is doing. Yoshie finds her and Ren's "friendship" to be adorable while Aoba and Ren are often exhausted by the advances and turned off completely by them.

Yoshie

Yoshie and Clara seem to share a standard relationship between owner and allmate. Yoshie adores her, referring to her as "Clara-chan", and constantly praises her in front of Aoba, Clara being unfazed by most of it but looking prideful nonetheless.

Ren

Clara seems to have a strong attachment to Ren as she always asks for him when Aoba drops by to deliver packages to Yoshie. It's implied to be a romantic interest, though it is not confirmed. Ren on the other hand dislikes her entirely. He states that while he doesn't hate Clara, he can't stand being around her for too long because her personality wears him out immensely and finds her to be unnecessarily confronting most of the time.

Aya Kuyama (Japanese)

(https://dmmd.fandom.com/wiki/Clara)