Bai Xu

He was first introduced when he came to Cloudy Brook Academy to meet with his friend Ren Huang. After noticing the movement of the Nine Temples he took the Soul Bone from Ren Huang and disappeared.

After Jun Wu Xie took over the Dark Region she tasked Ye Sha to find him to take the Soul Bone from him to deal with the Upper Realm. At first he refused because even Ren Huang was not their opponent but Jun Wu Xie told him to go watch a show in five days and see if he changes his mind.

Five days later Jun Wu Xie and the Night Regime killed over eighty thousand Gold Spirit members of the upper realm and defeated Nangong Lie with little effort so he escorted her to Cloudy Brook Academy and gave her the real Soul Bone. After he joined Jun Wu Xie and left to go to the Lower Realm's Lin Palace to teach medicine there.