Zheng Shaopeng, a high school student, dozed off during a history lesson. When he awoke, he discovered that he had changed into the impoverished scholar Yang Lin and had traveled to the Danzhu Dynasty in the history textbook. Initially, Yang Lin struggled to adjust to life in the past, but when he applied contemporary ideas to create a few modest innovations, he won the villagers' affection and eventually discovered a feeling of identity of his own. Yang Lin lived through a time of both internal and exterior unrest, experiencing battles and seeing the agony of the populace. By relying on his knowledge and abilities to acquire access to the court, he eventually oversaw the Danzhu Dynasty's efforts to combat internal corruption and repel formidable adversaries.—Bilibili TV

Adapted from a popular online novel originally published between 2007 and 2008, the animation tells the tale of Zheng Shaopeng, a university student who finds himself transported back in time to ancient China after a book falls on his head. Thrust into the body of a poor scholar named Yang Lin, Zheng navigates a turbulent era marked by internal conflict and external threats. Through his wisdom and ingenuity, Yang rises through the ranks of the fictional Danzhu Dynasty, tackling corruption, fending off enemies, and ushering in an era of technological advancement and enlightenment.—China Daily