Though Qing Mu is successful in getting his engagement to Jing Zhao cancelled, he incurs the wrath of Wu Huan. The poison within him spreads, and Hou Chi begs Wu Huan to save him, but she refuses. Hou Chi goes to Pilgrim Hall, where Mu Guang is cultivating, and though a barrier protects it, she manages to enter. Pilgrim Hall recognizes her as the master. (Source: frankly at MyDramaList)