Tamamo Cat

One of the Tamamo Nine. After Tamamo-no-Mae underwent a millennium of training and attained divinity, she cut off her other 8 tails when she returns to her one-tailed form. Each of her tails is left a portion of her divinity and becomes a Heroic Spirit.

She is the crystallization of Tamamo's more pure and sincere aspects, as well as the more feral parts of Tamamo's nature. She is something like a wild cat that one cannot tell what it wants to do, nor what sort of mess it will make.

(Source: TYPE-MOON Wiki)