The word "Xia" in Jianghu describes the heroic ambitions, love and hatred of countless people in Jianghu. The Jianghu hero is called Silver-faced Langjun Xiao Junyi, who was originally the third disciple of Luoshen Manor. Due to various reasons, he was forced to leave Luoshen Village. Xiao Junyi's departure triggered the emotional entanglements of countless children in the world and the grievances and disputes of many sects. A major feature of this book is that there are two main lines running through it. The first main line takes the emotional entanglement between the silver-faced gentleman Xiao Junyi and his junior sister Xia Qingwei as the fuse, and then accidentally brings out the entangled grudges between the three most beautiful women in the martial arts world at that time and Xiao Junyi. The second main line crosses the blockade of time, with Xiao Junyi's disciple Lin Fei'er as the protagonist, and describes the emotional legend between him and his lover Meng Yanran. It expresses the helplessness and sadness of countless children in the Jianghu who are born in the Jianghu and cannot help themselves. Xiao Junyi only loved Xia Qingyu in his life, but by chance, he had a legendary relationship with Hu Ningshuang. Lin Feier had a bad fate since she was a child. Although her martial arts career was smooth, her emotional path was bumpy. Originally, he and Meng Yanran were a perfect match. Unexpectedly, fate played a trick on people. Until the end, Lin Feier didn't know what to choose. Meng Yanran, the most beautiful talent in the martial arts world in later generations, has both talent and appearance. Rather than saying that it was fate that made it difficult for her and Lin Feier to get married, it was better to say that she had not seen through the world from beginning to end. The title of the book is "The Sword-fighting Hero". In fact, the sword-fighting is not the sword of a certain person, but the sword of the entire world. Qi Xia is not only called Qi Xia because of their unrivaled martial arts skills like Xiao Junyi and Lin Fei'er. So "why do we wield swords" and why are we called "Qixia"?