This is a martial arts world where mountains and rivers are determined by swords. Two hundred years ago, the swordsmith Ming'an forged seven unique swords by himself. One of them is named Qianyuan. Qian Yuan is extremely sharp, and his skill is far superior to the other six. At that time, there were seven major gangs in the martial arts world. Each gang had its own specialties, and the heroes stood side by side for several years. As soon as these seven peerless swords are released, the heroes rise up to fight for them. After a long battle of hundreds of years. The Qinggan sect, the Supreme Sword Sect, finally obtained the Qianyuan Sword, and the other six sects each received a famous sword. As a result, the Qinggan sect dominated the martial arts world. However, although this Qianyuan is more powerful than the other six swords, it also hides a devilish nature that is difficult to control. Finally, forty-five years ago, Qin Qing, the leader of the Qinggan Sect, became obsessed with practicing this sword. He killed all his disciples in one night and then committed suicide. It is not known whether anyone survived. From then on, this Qianyuan disappeared. And the entire martial arts world has returned to its former glory. Forty-five years have passed, and everything has been peaceful. It's just that the mystery of the Demonic Sword Qianyuan has been passed down from generation to generation, and now I'm afraid there is an undercurrent surging again...