Chen Yan, a graduate of the Department of Modern History, accidentally traveled to the Shu Han Dynasty for three years after Jianxing, just as Zhuge Liang was preparing for his first Northern Expedition. He has no magical powers or systematic blessings. He only relies on his solid historical knowledge and pragmatic mind to serve the Shu Han as a member of a poor family. After many twists and turns, he came into Liu Chan's field of vision.
At that time, there were factions within the Shu Han Dynasty and strong pressure from Cao Wei outside. The Northern Expedition was full of difficulties. Chen Yan strictly adhered to the rules and did not show off as a "prophet". He only improved the prototype of the Quyuan plow in farming to increase grain production. In military affairs, he optimized the coordination of his troops according to the military training methods in history books. He skillfully reconciled the conflicts between Zhuge Liang and the Yizhou nobles in the court, and gradually gained the trust of the emperor and his ministers.
After Zhuge Liang died of illness in Wuzhangyuan, the crisis between the Shu and Han Dynasties intensified. Chen Yan assisted Liu Chan in stabilizing the situation, abandoned the blind expedition to the north, and instead focused on cultivating Bashu, uniting with Wu to control Wei, and gradually accumulated national strength. For more than ten years, he helped Liu Chan get rid of his cowardly appearance, rally the hearts of the Shu Han people, and finally seized the opportunity of Cao Wei's civil strife, sent his troops northward, ended the troubled times step by step, and helped the Shu Han complete the great cause of unifying the world.
