adapted from the comic of the same name written by Xu Xianzhe. It tells the story of 607 AD, when the emperor was brutal and the people were in dire straits. It was the darkest era. The extraordinary skill of the bodyguard is walking in the desert of the Western Regions. On the way to avoid the pursuit of the imperial court, he accepts an escort mission destined for Chang'an. He thought it was just a simple bodyguard, but he did not expect that the journey was full of dangers and dangers. .