Born with an excess of yin (negative) energy, Guî has become a aspiring exorcist in Liyue with 'Chongyun' who is so effective to the point where he hasn't seen a spirit himself, as they immediately flee when he approaches. The excessive yin energy also makes him particularly susceptible to cold and often cruel emotion which has led to some rather unexpected results with Chongyun who has excess amounts of Yang (Positive) energy. He had a similar Adepti Talisman to Qiqi which was a gift from Xiao.