The Great Yong Dynasty faces trouble on every frontier. Newly ennobled marquis Wei Zhao is assigned to govern a remote border region, where he encounters Meng Xiu, a woman versed in mechanical engineering. Drawing on the resources of their territory, the two establish workshops and tackle military-industrial projects. With superior arms and equipment, they bolster the nation’s fortunes and sweep away the surrounding separatist forces, carving out a steady path through the chaos by building their foundation for supremacy on industry.