He is a frail man. He wears his hair in a ponytail and wears a mask.
Yuki tends to be childish and a good prankster, which Ordo finds him amusing for his pranks. Also, Yuki is very loyal to Ordo and is very secretive and impatient.
He was seen alongside Ordo during his attack on Zhao.
He weilds a bow so there is a chance he is one of the Ten Bows of China for Yan.