Xie Yun, a metal-type superpower who came from the end of the world, walked out of Zhongnan Mountain and was recognized as a Qi practitioner from Zhongnan Mountain because he could control flying swords. At that time, people did not know how old they were, nor did they know the origins of their sect. They only heard that the couple once claimed to live in an ancient tomb. Although the couple was both good and evil, they often did righteous things, so everyone at that time called them the Tomb Heroes.