It creates a lone swordsman with a unique aloofness and a pure heart, and tells his legendary life of wielding a single sword, traveling across the world, and adhering to the true heart of the sword. The protagonist has been alone since childhood, without the protection of a master or the support of relatives and friends. He encounters a hidden master of swordsmanship by chance and acquires a unique swordsmanship. As an adult, he held a long sword and walked alone in the world. He upheld the chivalry of the sword, hoeed the strong and supported the weak, punished the evil and promoted the good. He disdained sect disputes and false fame, and did not participate in the struggle for profit among the heroes. He only acted chivalrously with his heart and established himself with the sword. He has a cold and aloof temperament and does not like to be gregarious. He stays alone and takes responsibility alone when encountering problems. Therefore, he is known as the "Lone Sword" by the world. All the forces in the world are afraid of his peerless swordsmanship, and they try to win over him. They have repeatedly set up traps, surrounded and plotted against him. The decent sects of famous families regard him as an alien, and the evil forces want to get rid of him. The protagonist always adheres to the aloofness of the sword, neither humble nor arrogant, and walks alone in the world. With one sword, he defeats all kinds of magic, repels powerful enemies from all walks of life, and cracks down layers of conspiracies. On the way, he met a gentle confidant by chance, and his cold solitary life gave birth to a warm bond, which gradually warmed his aloofness. In the end, he discovered the true meaning of the lone swordsmanship, lived up to his sword spirit and chivalry, and used a lone sword to guard the right path of the world, becoming a peerless swordsman.