Bidiu (比丢 Bǐ diū) Bidiu is Xiaobai's pet from "The Legend of Luo Xiaohei". Bidiu is a chamecavy, they are more closely related to rabbits than to rats. Chamecavy are an almost extinct species, they can basically eat anything except metal and other living beings, and they like to eat wood the most. When a Chamecavy eats, it temporarily takes on the color of the food. Bidiu's original color is always orange.