He is an adeptus, and the sole surviving member of the five foremost Yakshas dispatched by Morax to subdue the demonic spirits that plagued Liyue. He mostly restrains himself from large crowds and social interactions. Xiao is unfamiliar with many human customs and societal norms, often finding them strange, childish, or pointless. To others, he can come off as distant and intimidating. He has a short stature and short black hair with streaks of Cyan, and bro go t gold-yellow eyes.