I Am Reborn in Yinjiaozi of the Song Dynasty

[A cool article about fictional history] Lin Qing, who sacrificed his life to save a child who fell into the water, was reborn in the Song Dynasty when he opened his eyes. Bind a golden finger with you - a computer that can be summoned at any time and can connect to modern networks, paired with a printer with unlimited battery life! Jiaozi, who started off by relying on printers to copy and prevent counterfeiting, went on to earn money crazily in the Song Dynasty, where iron money was heavy, and he jumped from a down-and-out scholar to the God of Wealth of the Song Dynasty who monopolized the business world. When his power angered the imperial power, Lin Qing simply overturned the chessboard: using modern knowledge to innovate armaments, using the financial system to control the world, first defining the Central Plains, then expanding the territory, and finally sweeping the world with one piece of paper, creating an immortal legend of unifying the world!