In the ancient continent, the human world was divided into two factions - humans and demons. After the ancient war, the Human Emperor turned into the soul of the sword and merged into the sword, but the sword fell into the world and its whereabouts are unknown. And the Demon Lord was also sealed. For thousands of years after that, the two races, humans and demons, lived in harmony and prospered. And the return of the Demon Lord put an end to everything. Huangfu Lingyan and others embarked on the road to find the sword, hoping to defeat the demon king. On the other hand, Huangfu Lingyan's brother led his tribe to resist the demon army. In the Demon City, the severely injured Demon Lord was afraid that Huangfu Lingyan and others would find the Sword of the Ancient Human Emperor, so he sent people to chase him all the way...