The emperor Xiao Chong is critically ill and the prince Xiao Yan is still young. The eldest princess Xiao Lingci is ordered to assist the prince in handling the affairs behind the curtain. In the 19th year of Yongchang, the emperor passes away and the prince succeeds to the throne. Rumors in the court are everywhere and secret parties are around. The clan is ready to make a move. The century-old foundation of the Dayan Dynasty is crumbling. The eldest princess is alone in the court. However, Qi King Mu Qingli came from Qi Country in the north to walk in the snow...