In modern society, Cheng Mo's soul was shattered in a car accident and he became Cheng Chuhan, the stupid second son of Cheng Yaojin. On the surface, he wore the name of "Cheng Hanzi" and quarreled with heaven and earth against the emperor. On the inside, he concealed modern wisdom, improved farm tools, opened shops, and even proposed salt-making methods to solve the salt shortage of the Tang Dynasty.
He blocked the marriage contract between Princess Changle and Changsun Chong, angered the foreign envoys who coveted the princess, broke the etiquette with his military exploits, and finally married the two legitimate princesses of Changle and Jinyang. From a fool that everyone laughed at, he transformed into a general who ruled the country and wrote the legend of the silly son-in-law in Zhenguan.
