Across the vast land of Jiuzhou, the realm is united under one rule and divided into three worlds: the human, demon, and immortal realms.
In the human realm are the Nine Clans, the imperial clan, and the common people. The Nine Clans are a mysterious group of practitioners of arcane arts, each blessed with supernatural abilities. They help the ruler slay demons and banish evil, securing the kingdom. The imperial clan, centered on the court and its officials, governs the land. Corpse drivers are a distinctive group who make their living through the art of driving corpses. There are also bandits and wanderers of the martial world, people without fixed occupations who roam the jianghu. The common people are everyone else among the many peoples of the world.
The demon race includes stone demons, wood demons, beast demons, and human spirits. They are not born as demons, but are transformed from giant creatures of the human world through cultivation. Once they reach a certain stage, they can cultivate into demons. Stone demons take shape from boulders, wood demons come from plants, beast demons transform from birds and animals, and human spirits form from people who die bearing resentment. Among the demon race are also the orthodox devils, its core strength.
They kill without a trace and claim victory from a thousand miles away. Though they are merely ordinary beings of flesh and blood, they possess bodies capable of subduing demons. The Nine Clans are a mighty force that poses a deep threat to the peace of the demon realm. Since the dawn of history, the demon realm has constantly plotted to wipe out the Nine Clans and eradicate those who hunt demons. That would let the demons run rampant, free of all restraint.
Yet a vast conspiracy lies hidden behind it all. The Nine Clans are not merely a threat to the demon realm: they are also crucial to maintaining the balance among the three worlds. Their mission is to protect humanity and fight evil spirits. But the demons seek to shatter that balance and plunge the world into chaos.
