The protagonist Yang Hua, a master's student who graduated from the Industrial Automation Major of Modern University, time-traveled to the end of Tianbao (755 AD) and became a low-level grain cao of the Tang Dynasty government responsible for the transportation and management of military grain near the Talas front line (similar to the level of a director in the Ministry of Personnel but responsible for grain and grass). From a comfortable modern graduate student, he gradually transformed into a marginalized figure who could struggle to survive in troubled times and tried to use "knowledge" to change his personal destiny and slightly influence the trajectory of the times. In the process, they will face conflicts of loyalty and tests of faith. There are five heroines, one of whom is the legitimate daughter of Emperor Xuanzong of the Tang Dynasty. The background of the story is set in the 14th year of Tianbao in the Tang Dynasty (755 AD), on the eve of the outbreak of the Anshi Rebellion. The location is located in the western border of the Tang Dynasty - the Anxi Protectorate. It is the frontline of multi-ethnic and multi-cultural integration, and the forefront of collision with forces such as Dashi (Arab Empire). The core of the worldview is that this is a world that combines real history with fictional elements. On the one hand, it strictly follows the historical background, military system, bureaucracy and customs of the time to create a real sense of historical depth; on the other hand, the protagonist's golden finger "Datang Sheji Deduction System" as the only supernatural element adds variables and excitement to the story. The conflicts in this world not only come from the military confrontation between the Tang Dynasty and neighboring countries, but also from the increasingly intensified class contradictions within the Tang Dynasty, the confrontation between civil and military bureaucrats, and the upcoming national unrest. The protagonist's modern knowledge will collide fiercely with the productivity and ideological concepts of this era, becoming the core driving force to promote the plot.
