Zodiac god: Cat (still in progress) Nyaa-tan is the female protagonist of the Etotama series. She is part of the Chinese astrology. Her goal is to become one of the twelve Zodiac Gods, and she tries various ways to become a member. In her battle form, Nyaa-tan has a white cat-hat, with green ears in it, and also a happy face on it. She also has white boots with flowers on it, instead of brown shoes. She also seems to have a thicker tail.