Three hundred years ago, eight kings vied for supremacy over the Central Plains, and war raged across the land. To end the conflict, the master craftsman Nie Han, known as "Peerless Artificer," defied the workings of heaven and forged two divine weapons, Sky Firmament and Moon. When the weapons appeared, they sought masters of their own and were claimed by two extraordinary heroes. Wielding the divine weapons, the pair soared through the air and swept across the Nine Provinces, defeating the million-strong armies of six kings. They helped two of the eight kings ascend to the throne in that chaotic age, founding two kingdoms that stood side by side.
But things did not go as hoped. The cycle of fate turned, and not long after Peerless Artificer Nie Han passed away, the two heroes ascended to immortality. Strange omens appeared one after another, and for reasons unknown, the two divine weapons shattered and scattered across the world. The realm, long at peace, was thrown into turmoil once more, sparking a clash between the two empires.
The weapon spirits, scattered in pieces across the world, each held a peerless manual. It was said that gathering all the spirits would bring the divine weapons back, and could even open a hidden treasure left behind by Peerless Artificer.
The scattered weapon spirits fell into the hands of five extraordinary heroes. Each claimed one and founded their own sect and path of cultivation. They fought one another, all hoping to gather the five weapon spirits, restore the shattered weapons, and seize the legendary hidden treasure.