Lin Yi, a migrant worker, woke up and transformed into a poor grocery store apprentice in Qingniu Town of the Great Xia Dynasty. He was also bound to a "Everything Mall" system - he could buy modern goods, but the price was a hundred times higher. He couldn't even afford a lighter, so he made his first pot of gold with a birthday banquet performance of "breathing fire from the palms of his hands". From then on, the fragrance of instant noodles spread throughout the town, the soap caused the ladies to go crazy, and the cement road shocked the government and the public. Adhering to the principle of "only cutting leeks from the rich and never involving the common people," Lin Yi used kerosene lamps to illuminate the ancient night sky, used steam engines to kick off industry, and used bastions and telegraphs to win the War of Patriotism. From the richest man in the county to the unparalleled scholar in the country, when the system asked him if he wanted to return to modern times, he looked at Shen Mobai and the child who was about to be born next to him, and made his choice with a smile. This is a story about a modern business genius using technology to cheat the Xia Dynasty.