Born into a farmer's son, Zhou Chen used modern knowledge to improve farm tools, make new straw sandals, and save money to study. He worked step by step, passed the imperial examination to high school, and became the chief assistant. However, in the desire for power, he abandoned his original intention, formed a clique for selfish interests, and eventually his house was confiscated. The moment the knife fell on the execution ground, he suddenly woke up - he was still a student in the classroom, and the history book was turning to the page "Water can carry a boat, but it can also overturn it." Only the palm of my hand still retained the cold touch of the jade pendant in my dream.