Su Yu was transformed into the rich second generation of the Tang Dynasty. He originally wanted to rely on modern knowledge to survive and die. One day, a middle-aged man who called himself "Shopkeeper Li" came to ask for advice, all about national affairs. Su Yu casually mentioned work-for-relief, plowing, and growing vegetables in a greenhouse... Until Li Shimin threw out his "homework" in the court, causing an uproar in the court. Fang Xuanling squatted at Sujiazhuang all night: "Master, the emperor asked you to write a policy paper again!" Du Ruhui hugged his thigh and cried: "Please give me this cement formula to copy!" Cheng Yaojin directly squatted at the door with a sack on his shoulders: "Brother Su, can you share some high-yielding seeds?" Su Yu looked at the Zhenguan bachelors who came to "copy homework" every day and fell into deep thought: "You... Couldn't you really be Li Shimin?"