Hilly is, obviously, a hilichurl. Hilichurls are short and aggressive humanoid creatures who live a very tribal lifestyle with limited technology. Hilichurls come in various colours and can often wield one of the 7 elements, but each and every hilichurl always wear a mask that they never take off. They speak in their own language called Hilichurlian, and all hilichurl have a fondness for meat and a dislike for vegetables.