Xie Linyuan was originally a lone general in the north. Once he was falsely accused of collaborating with the enemy and his entire family was executed. When he was about to die, his soul traveled to another world and he became the deliverer of the enemy's secret message. He holds secrets that are enough to subvert the imperial power, but accidentally uncovers the shocking secret of Crown Prince Lu Zhaoyao - the secret letter was actually written by Lu Zhaoyao. The two went from a life-and-death confrontation to testing each other. Xie Linyuan used the enemy's secret information as a blade, and Lu Zhaoyao used the emperor's power as a shield. In the game of blood and fire in the court, who is plotting and who is caught? The truth is not yet known, the throne has been shaken, and they are using a secret letter to rewrite the world.
