Murong Chengyan, a graduate student in the Department of History, accidentally traveled back to the reign of Renzong in the Northern Song Dynasty and became a low-ranking official in Kaifeng Prefecture. He originally wanted to earn a living by relying on knowledge that transcended his time, but he was inadvertently involved in the undercurrent of the court. Faced with the reality of poverty and weakness and the eyeing Liaoxia, he decided not to be alone. Using modern technology and historical knowledge, he improved agricultural tools, innovated military weapons, and developed commerce. Step by step, he grew from an inconspicuous little man to a key man who could shake the national destiny of the Song Dynasty. This is the story of a small man swimming against the tide of the great era, trying to prolong the life of this brilliant but fragile dynasty.
