Xiao is an ISTJ personality type. He takes a rational approach to life. Trustworthy and dependable, Xiao is the kind of person you can count on to stick to his word. ISTJs are traditional and they often expect the same from others. Liyue is one of the seven regions of Teyvat. It is the nation that worships Rex Lapis, the Geo Archon and God of Contracts.