Modern college student Ye Ming accidentally traveled back to the Northern Song Dynasty in a laboratory accident. Facing the unfamiliar and backward ancient society, he relied on the science and engineering knowledge and modern thinking he learned at the university to gradually change the lives of local people, starting from improving farm tools and promoting advanced planting techniques. In the commercial field, he used economic principles to open stores and build a business empire; in the political arena, he used his unique insights to make suggestions for the court. However, his shocking actions attracted the attention and suspicion of all forces, and disputes in the court and grievances ensued. Can Ye Ming gain a firm foothold in the ever-changing Northern Song Dynasty, use knowledge to write his own legend, and rewrite the trajectory of history?