The Legend of Qin was a very popular Chinese online novel. It told the story of a group of swordsmen and generals in an illusory historical background in order to protect the country and the people. If you want to watch which one first, you can decide according to your preferences and schedule. If you like the emotional entanglements between the main characters and the creation of characters, you can watch The Great Wall of the Qin Dynasty. If you like battle scenes and sword techniques, you can first watch the Hundred Schools of Philosophy of the Time and Moon of Qin. If you like the grand background and complex structure of the whole story, you can watch the movie " The Bright Moon of Qin Dynasty's Reigning the World " first. Of course, this was just a suggestion to choose the one that he liked the most according to his own interests. No matter which one you watch first, don't forget to enjoy the wonderful process of the entire story.