When Zhao Qingyuan, a doctor of history, traveled back in time to the late Northern Song Dynasty, he had to use his knowledge to maneuver among the powerful to save his life, but he witnessed the collapse of civilization after the Jingkang Incident. He was forced to transform from a romantic scholar to an iron-blooded soldier, assisting Yue Fei in the Northern Expedition to save the Han Dynasty from crisis. Otherwise, Chinese civilization would be completely annihilated under the iron heel - and the deep backlash of the times is quietly growing with every historical intervention he makes, and may swallow up the entire time and space context.
