Chen Ge, a graduate student in military history, traveled through time and became a frontier army scout on the eve of the Anshi Rebellion. He originally wanted to wait for the wheel of history to roll over, but due to an intelligence error, he was involved in the darkest chess game of the empire. He rescued the exiled clan member Li Xian, and the two formed an alliance amidst the mountains of corpses and sea of blood, but each had their own agenda. Chen Ge wants to change history, Li Xian wants to take revenge and seize power, but Pei Yan's intelligence network, Guo Ziyi's military morale, An Lushan's cavalry, and Li Fuguo's conspiracy are like four nooses around their necks at the same time. When Chen Ge discovered that every "change" he made was causing history to slide into a deeper abyss, he finally understood: We will share the eternal sorrow with you. What worries us is never the troubled world, but the people's hearts.
