The northwest border was invaded, but General Gu Nianchen never expected that Shen Yin, whom he had trained, would join forces with the enemy leader to defeat him. He was seriously injured and thrown into a mass grave by mistake. Shen Yinfeng, a famous doctor in Jiangnan, accidentally discovered that he was still alive and treated him carefully... Alliance? Returned but was accused of being a traitor? Whose minister is "I"?
Or a chess piece?
Purpose: The Paradox of Loyalty