After the protagonist Lin Mo is reborn, he is bound to the "Old District Revitalization System". The system rewards are linked to the "permanent population of Xicheng District" and the prosperity of the old district, but 30% of the funds must be used for public infrastructure or charity, otherwise money will be deducted. Lin Mo was originally just an ordinary person living in an old tube building, but after being humiliated on a blind date that "Xicheng District is a slum", he decided not to move out or sell his house, but to use system funds to reversely transform the entire old city. He started by repairing a vegetable market and an abandoned old cigarette factory. He recruited a group of eighth-level workers, old tailors, watchmakers, scrapyard masters, and dental instrument craftsmen who had been abandoned by the times, and turned the run-down neighborhood into a high-end manufacturing base. The core point of the story is not simply getting rich, but "I get rich not to escape the old neighborhood, but to make the old neighborhood valuable again." The protagonist is repeatedly blocked by big capital, predecessors, peers, public opinion, and the supply chain, but he is always able to dig out the cards for counterattack from forgotten people and old objects in Xicheng District, achieving technological breakthroughs, industrial chain reconstruction, dignity comeback, and urban revitalization.