Entering the Tang Dynasty, let us follow the torrent of history and follow Emperor Xuanzong of the Tang Dynasty through the prosperity and end, the joys and sorrows of separation and separation. We cannot change history, and we cannot do whatever we want. We can only follow the torrent of history and walk through the course of the Tang Dynasty again. Looking at Li Longji's life, I can't change his destiny. I can only witness the ups and downs of him and the Tang Dynasty. Now, let us witness the prosperity and decline of that prosperous Kaiyuan era, and feel the joys and sorrows of that era.