Modern engineering designer Liu Heng accidentally traveled back to the sixth year of Xiping in the Eastern Han Dynasty and became the chief of a dilapidated pavilion in Zhuo County. Seeing that troubled times were coming, he decided to use the thinking of a science and engineering man to create a great empire. From improving farm tools to building water conservancy, from building soldiers and armor to establishing foundations, while making friends with future heroes such as Liu Bei and Cao Cao, they use technology and infrastructure to change the destiny of China. Humor and wisdom coexist, blood and warmth are intertwined. This is an alternative Three Kingdoms legend written with wrenches and drawings.
