Xiao is known for his hardened personality, but those around him know that he has a kind heart. Xiao is highly protective over any traveler, to the point that they only need to speak his name to have him appear in front of them. He is one of the Yaksha, a guardian of Liyue who defends the land from demons and cleanses evil where he finds it. Xiao has constantly been fighting against the enemies of Liyue for thousands of years. Before that, he was forced to kill when he was imprisoned by a god.