This chapter opens with a description of the family of the tang clan, a secluded martial family. It is said that the clan once had a famous reputation, but the family has a restriction on its members' travel. The third generation of the clan, led by brother xuan, has vowed to break the restriction and travel the world. However, the strongest member of this generation is brother lin, who always follows the rules. They have been trying to travel around the world, but they have been unable to pass the obstacle. This obstacle has stood in their way like a mountain, and they have always been learning from each other. When they are ready to travel, they decide to fight with real swords, but this is too dangerous.