This is Clemency, she's the (non-canonical) sister to Pacifist, she is programmed to be the perfect baby plus she has a self-defense function, but something went wrong so she will neutralize anything that causes high distress by consuming the thing causing distress. She is a sheep/cat hybrid.

She was made by  Choka with my assistance. She will be taken care of by him from this point forward. If you wanna see his drawing of Clem: Here