Shen Yan, a graduate student in the Department of Modern History, accidentally came into contact with an ancient book in the museum and traveled to the fictional martial arts world "Dayong Dynasty". The martial arts here is prosperous but there are hidden conspiracies, there are many sects in the world, the court and the martial arts are constantly entangled, and there is also the legend of the "Shattered Void" that has been lost for hundreds of years. Shen Yan has no martial arts skills, but carries a broken notebook that records lost martial arts theories and historical secrets. In the crisis-ridden world, he goes from survival to exploring the truth of time travel, and finally stirs up the storm.