In the past, the Yanyun Mountains became a barrier to the southern border and the imperial capital. However, as the Yanyun Mountains were gradually removed, this natural barrier was gone. Originally, Fengyun successfully thought that Fengyunxiao was just to remove the Yanyun Mountains. But he did not expect that Fengyunxiao seemed to have the tendency to control the entire Fengyun Empire. In this way, Fengyunxiao was eyeing Fengyunxiao in the south. A bloody army of 200,000 people from the north went south and headed straight to the imperial capital. At this time, Yan Yin asked the invitation sent by Kuangdao to the imperial capital to Linglong. So after some discussion, Mu Yan immediately expressed his intention to take Linglong to the northern border to ask Yan Yin for help in the name of congratulations. It is also because of this that Mu Yan appeared in Yunxi City with Linglong and came to Yan Yin's Dingbei Hou Mansion.