Thirty years ago, the late Emperor of the Northern Qi Dynasty sent Xiao Xiao and Ku He to lead the cavalry to the north to search for traces of the temple.The team entered an uninhabited wilderness. The environment was harsh and accidents occurred frequently. All the cavalry were killed and wounded, leaving only Sean and Ku He.The two experienced the purgatory of survival, survived the long polar night, and finally made it to dawn, and then the temple appeared in front of them.They approached the huge door of the temple devoutly, but they could never reach it.When the two were confused, a little girl ran out from the temple gate and was worshiped by Ku He and Xiao Xiao like a fairy.The little girl gave them a thread-bound book with secrets, which Kuhe regarded as a treasure.Afterwards, the little girl, Ku He and Sean headed towards Beiqi.