Tamamo Cat, Class Name Berserker, is a Berserker-class Servant summoned by Ritsuka Fujimaru in the Grand Orders of Fate/Grand Order. Compared to Tamamo-no-Mae, she has more muscles than the original and is a little heavier. She has cat's paws in the place of hands and feet. 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. As a dignity of a wild beast, once someone is served as a "lord" (reads also as "owner"), she devotes her allegiance until the end. After forming a contract, Tamamo-Cat will turn into a guardian beast that wants nothing but to be helpful to her master (reads also as "husband"). Once things become like this, protecting the Master, the happiness of the Master becomes foremost and Cat stops thinking about her own joy. As a Berserker, it is basically difficult to come to a mutual understanding. However it is hard to call it a maddening since Tamamo-Cat had little reason to begin with, but nobody is really mindful for the circumstances are similar. Occasionally she surprises the people around her by the words of wisdom interspersed within her incomprehensible mixed metaphors and bizarre non sequiturs. She shows no interest anything but tasty things, fun things, everyday fully enjoying a hunting lifestyle according to her whims. As she also inherited Tamamo-no-Mae's domestic skills, Tamamo-Cat enjoys cooking and domestic work. Her favorite food is carrots, her hobby is café management (which she uses as part of Chaldea's cafeteria staff alongside EMIYA and Boudica), and she has a minor vocal tic where she randomly adds "woof" to the end of her sentences.