At the end of the Northern Song Dynasty, the world was in chaos, with internal and external troubles, and demons dancing wildly. After traveling to such an era, where will we go? Specious history, the records of later generations are no longer reliable. Is Fang La in Jiangnan really just a civilian rebellion? Why did the Jingkang crisis arise? Why did the Southern Song Dynasty never advance northward and finally come to an end? The vague history is difficult to distinguish between true and false. Let's watch Xiao Dutou uncover the truth step by step, riding the wind and the moon, and looking across this blurred time and space.