Xiao is a short guy with a wolfcut-like hairstyle, his hair being a very dark blue that slowly fades into a cyan, and has a few cyan strands. He has yellow eyes with diamond-shaped pupils and a rather sharp eye shape. He has a small purple diamond on his forehead, which his hairstyle makes visible. He isnt used to abiding to social norms, which makes him seem very quiet, reserved and hot tempered, although he is simply shy. He wears red eyeliner.