Xiao uses the medium male model. He has dark medium-length hair with teal undertones, pale skin, golden irises with avian pupils, and red eyeshadow. Xiao also has a purple diamond marking on his forehead and a green tattoo around his right arm. While Xiao's callous exterior can make him appear intimidating, much of his outward personality stems from his reservations about the violent deeds he has performed and the loss of his allies over the course of the years. Deep down, Xiao is a gentle soul.