Erin:
But after the latest episode, where we saw the Lingyuan sect you think that if she was one of their members they wouldn’t have one of their members going directly against another. Also, the way they spoke of YX they called him the young master so I found out a bit interesting.
He's the direct disciple of the master of Yuntai, which makes him the young master. The sect doesn't allow marriage or children, so he's the equivalent of the leader's son. In Chinese culture, a master/teacher is the disciple's father figure. There's a saying, "A master for a day is a father for a lifetime."