The Ninth Hell will execute their traitor, Hong Luan and the immortal, Duan Mu. Duan Mu saves Hong Luan and Zhan Yan finds the antidote. However the Hong Luan that is saved is actually the demon lord in disguise. The heavens hear about it and send an army to catch Duan Mu. Zhan Yan saves Duan Mu before she is captured and promises to find the real killer in three days. The black cat attacks Duan Mu and gets trapped. He runs to find Lord Jiang and says he is his son. Lord Jiang gives up his position and takes the punishment in his place. (Source: jindreame at MyDramaList)