Modern girl Song Zhiyou time-travels to the Great Yan Dynasty, binding the Ten Thousand Realms Book Library system. Penniless, she starts by setting up a street stall selling books, using modern marketing techniques to ignite the market, recruiting down-and-out scholar Cao Yizhi, painter Xu Xiangyu, and others to form a book-copying team, and creating her own punctuation marks to solve the difficulties of ancient text segmentation. She founds the Zhixing Bookstore, and the stories from her brush sweep across the entire city. The sixth prince, harem imperial noble consort, Imperial Academy tutors, and military generals all become obsessed with chasing updates. In the process of getting super rich through business, she sparks a grassroots literary circle revolution that sweeps across both the imperial court and the common people.