Overturning the Song Dynasty: Shadow of Chanyuan

Who writes the torrent of history? Are they the emperors and generals in the temple, or the unknown people in the shadows? The negotiation and signing of the "Chanyuan Alliance" is the overt line, and the competition between Song and Liao for a piece of top-secret information that can change the fate of the country is the hidden line. The forced involvement of a small person is like a pebble thrown into a calm lake, eventually triggering a storm that rewrites history.