Tang Xuan is indeed a member of the Haotian Sect, but he cannot be counted as such. The members of the Haotian Sect all have the surname Tang, so he counts; the martial spirits of the members of the Haotian Sect all have the Clear Sky Hammer, but Tang Xuan does not, so he does not. When the martial soul awakened, Tang Xuan became excited when he discovered that he was the only one who knew what the heavy book suspended in his hand was.
Heroes of Might and Magic 3 was the game he was playing before time travel, and the familiar book with its simple patterns was clearly the magic book inside. Therefore, he had no choice but to make his own way, and then run towards prosperity with the Shreks led by little brother Tang San.
Concept: The story of Tang Xuan's adventure in Douluo Continent