Black Hayate

Black Hayate is a little puppy that was found by Kain Fuery on the street in a rainy day. However, Fuery couldn't take care of the puppy because he lives in a dormitory. He asked all the possible people that might take care of it: the Elric brothers, Jean Havoc, and so on. He didn't find anyone that could take care of Black Hayate, so, Riza Hawkeye adopted it.