Beast world

The world was just a normal place but one day non-human beings appeared and they acted and looked human but have abilities to shape seft in there animal form. These beings are known to have animal Barts like wolf ears etc. These beings are sometimes just have normal animal Barts but then there is the rare one that have don't have normal animals Barts but mythical beings. When these beings appeared the world went into a war. After the war these beings was in slaved and used for slavery, pets or as weapons. They where then known as beasts. (you are a beast and you start as a baby but you can pick everything else)