If they are together for a long time, they will be divided. If they are separated for a long time, they will be reunited. How many dynasties have changed in cycles in this vast land of China. The Yellow Emperor fought against Chiyou, Shang Tang defeated Jie, and King Wu defeated Zhou, until the Spring and Autumn and Warring States periods when people filled the city with people and people filled the fields with people. The people were just struggling in the world. At that time, the world was always controlled by those princes, generals and ministers, the so-called proud men of heaven. When they lay dormant in the dust of history, some were praised by people, and some were spurned by people. However, no one knows that some people who have been in charge of their lives are actually influenced by the sword in their hands. But no one remembers the names of those swords...