Hou Chi goes after the 3 treasures to save Bo Xuan, but although she has many helping her, she also has many who are sabotaging her efforts. Wu Huan is sent to the Netherworld to atone for trying to frame the missing Halberd of Sun and Moon on Qing Mu. Despite his unwillingness, Wu Huan convinces Jing Yan to release all the evil auras in the human realm in order to pin the blame on Hou Chi. (Source: frankly at MyDramaList)