Ling Yun, a graduate student in the history department, accidentally traveled to the Yan Kingdom in the early Warring States Period during an archaeological experiment and became the second monarch, Yan Houzhi. Faced with the threat of the mountain warriors in the north, the contempt of the Central Plains powers, and the shortage of domestic talents, he relied on his understanding of the history of the Warring States Period and modern management knowledge to pioneer the "golden platform to recruit talents", break the system of senior officials and senior officials, and attract talents from all over the world.
He implemented the "Jicheng Reform": establishing military honors, promoting Daitian Law, developing Liaodong, and establishing border cities. Internally rectify the official administration, and externally cooperate with Zhao to control Qi. After experiencing events such as the battle to pacify Shanrong, the expansion of Liaodong, and the five-nation alliance, the weak Yan State was finally built into a "powerful state in the north, frightening the Hu Rong in the east", laying the foundation for the golden age of King Yan Zhao in later generations.
