Core summary: Lin Mu, the product manager of a large modern Internet company, died suddenly after working overtime and time-traveled into a down-and-out scholar who was abandoned by his family during the Hongwu period. With his unique skill of "painting" (making PPT), he went from the local county government all the way to Fengtian Palace and became a popular figure in front of Zhu Yuanzhang. While other officials were still using the old routine of "Chen Qizou", Lin Mu had already used bar charts to show Zhu Yuanzhang tax growth, used pie charts to analyze the proportion of official corruption, and used Gantt charts to plan the progress of the Northern Expedition. Zhu Yuanzhang became addicted from then on: "Draw for us! Draw big pictures!"
Historical timeline: The story begins on the eve of Queen Ma's serious illness in the fifteenth year of Hongwu (1382), and runs through the Kongyin case and Guo Huan case until the last years of Hongwu.