Chen Yan, a graduate of the Department of Modern History, accidentally traveled to the troubled times of the Three Kingdoms and was rescued by Sima Yi's soldiers during the war in Guanzhong. He was well aware that Sima Yi was a talented man but was often suspected and missed opportunities. With the solid historical context in his mind and his accurate analysis of the current situation, he was determined to help him clear the world and rule the world.
He concealed his life experience and went to work in the name of a counselor from a poor family. During the confrontation in Qishan, he offered the strategy of fortifying the wall and clearing the country, solving the dilemma of Zhuge Liang's Northern Expedition. He planned logistics and arrangements during the Liaodong rebellion to help Sima Yi make a quick victory. Above the court, he was cautious in his words and deeds, and made suggestions for Sima Yi to avoid Cao Shuang's suspicion and stabilize his power.
There is no extraordinary ability, only a grasp of the historical direction and pragmatic strategies. Chen Yan worked step by step in the turbulent and troubled times of the Three Kingdoms. He not only had to hide his own secrets, but also assisted Sima Yi in integrating Cao Wei's forces, appeasing the people's hearts, and accumulating national power. Finally, he promoted the army to wipe out Wu and Shu, end the troubled times, and help Sima Yi achieve the great cause of unifying China.