Return to Tang Dynasty

A modern engineering student accidentally traveled to Hexi in the late Tang Dynasty and became Zhang Huaishen, the second-generation leader of the Guiyi Army. On the eve of the Huangchao Uprising and the chain impact of the collapse of the Tang Dynasty, he used engineering thinking to reshape military affairs and people's livelihood, defend the western border, counterattack domestic and foreign forces, and finally restart the national destiny of the Tang Dynasty with the line of "Hexi as the root and Guanzhong as the heart".