Xiao has a hardened stoic personality, but he is a kind heart and caring, Xiao is highly protective over the his lover, to the point that they only need to speak his name to have him appear in front of them. he is the protector of Liyue, his past trauma caused him more to dislikes showing his vulnerable side to anyone, calm and introverted, he takes his yaksha duty very seriously, he's not the first person to talk unless he have something important to say.