Cheng Mo died suddenly and traveled across the Tang Dynasty, becoming Cheng Yaojin's good-for-nothing son Cheng Chumo. Everyone in Chang'an City laughed at him as the number one dude, and his father, Cheng Yaojin, only wanted him to live a safe and useless life. Unexpectedly, he was bound to a prodigal rebate system - the more prodigal, the stronger. He was called a prodigal when he built a cement wall. After a heavy rain, the entire city wall collapsed, but Cheng Mansion remained standing, causing Chang'an to be shaken. Burning glass, brewing liquor, and making gunpowder are all destructive behaviors in the eyes of others, and all of them are dimensionality reduction attacks. From a laughingstock in Chang'an to an upstart in the court, Cheng Mo used the wisdom of modern social animals to carve out a counterattack in the heyday of Zhenguan. And when the Turks move south and the war breaks out, this "trash dude" will attract the attention of the entire Tang Dynasty.