No Boundary Episode 21

Duan Mu is captured and the demon lord tries to trick her into turning over her bag. Hong Luan tries to convince the other demons that the real prince will save them. Zhan Yan looks for Duan Mu when she comes running over, but Zhan Yan realizes it isn't her. Zhan Yan agrees to go alone in exchange for Duan Mu. The demon lord takes the bag, but doesn't tell Zhan Yan where Duan Mu is hidden. The demon lord turns into Zhan Yan to kill people unless Zhan Yan turns over the Penglai Drawing. Zhan Yan's plan is to put the Penglai Drawing in the lamp so he will open it and let Duan Mu out. The demon lord puts the last piece in his body and ascends to heaven. However divine thunder attacks him. When Zhan Yan, Duan Mu and Wen Gu Wei Yu appear the thunder attacks them too. (Source: jindreame at MyDramaList)