Lin Chen, a graduate of the Department of Modern History, accidentally traveled to the late Ming Dynasty and became the son of a convicted and exiled Suzhou magistrate. With no other options, he married into the local Shen family, a wealthy family. He was despised due to his low status. Just as the Shen family was about to be executed for being involved in a corruption case, Lin Chen was in a desperate situation. When Lin Chen was in a desperate situation, the "Ruling the World and Strengthening the Country System" was activated. As long as you complete system tasks to eliminate corruption, develop production, and prepare for war, you will be rewarded with modern technology, institutional knowledge, and various resources. Jiangnan was the lifeblood of the imperial court's taxation, but it was monopolized by the eunuch group headed by the Wang family. A century of corruption had already hollowed out Jiangnan, and Houjin outside the customs had already mobilized troops and would invade in half a year. If the corrupt group could not be captured as soon as possible to fill the treasury, the Ming Dynasty would not only be unable to fight against foreign enemies, but would also fall into a refugee rebellion in advance, and the Central Plains would surely fall into the hands of foreigners again. The emperor secretly ordered Lin Chen to thoroughly investigate corruption in Jiangnan, but he had no military power and no cronies. The entire Jiangnan officialdom was filled with powerful people, and even the Yue family had reaped the dividends of corruption. On the one hand, he had the ideal of saving the Ming Dynasty from danger, and on the other hand, he had the interests of his family. Lin Chen had to make a choice. If he fails, he will be killed by the corrupt group, the Shen family will be implicated in his annihilation, and the Ming Dynasty will collapse in the flames of war; if he succeeds, he will also bear the infamy of betraying his family for glory. Lin Chen relies on the information and resources provided by the system, starting from tiny clues, tearing apart the corrupt group step by step, overthrowing corrupt officials, accumulating strength, developing industry and commerce, training new troops, and finding a way out of the chaos of internal and external difficulties. Can he successfully rectify the imperial court, repel foreign enemies, continue the Ming Dynasty, and create a new prosperous age?