Shen Hao, the president of a modern chain empire, traveled through the prosperous Tang Dynasty after an air crash, and woke up as a beggar in the West City of Chang'an. He was alone, with only modern business wisdom in his mind. He did not rush to follow the dragon and the phoenix, but started with a bowl of hot porridge and a homemade folding food box, and he led his beggar brothers around him to survive together. He used division of labor and cooperation to revitalize small businesses in the market, refreshed the business model of the Tang Dynasty with "old for new" and "membership system", and paved the way for counterattack by relying on convenient services. The gentle help of the down-and-out embroiderer Su Wan, the repeated attempts by the bullies in the West City, and the malicious suppression of the established trading firms could not stop him. From begging in a ruined temple to becoming a rich man in Chang'an, from being alone to the lights of thousands of houses, Shen Hao used warmth and strategy to write a legend in the fireworks alleys of the prosperous Tang Dynasty, in which a beggar turned into a millionaire.