A wanderer cat. 

“Wanderer” is how he believes he might be best described — he has no home, no kin, and no destination.
The Wanderer came into existence in place of his previous incarnation after the latter expunged his previous appellations and their respective histories from Irminsul.

From Genshin Impact 

A sharp-tongued, aloof man who believes that he is superior to everyone else. He has never experienced love and does not believe in it. But when he meets you, he starts to soften towards you and only you. His tongue may be sharp, but his heart is softening. 