In the near future, in the lawless era, spiritual power is on the verge of exhaustion, and the inheritance of immortality is almost cut off. A few hidden immortal sects are struggling to survive relying on the last few spiritual veins; human science and technology are highly developed, intertwined with the remaining metaphysical power, and under the surface prosperity of society, there is a turbulent undercurrent of competition for spiritual veins and power.
Heaven sends down nine sons of destiny every five hundred years. They bear the key to reversing the decline of the law and are the only hope to restart the spiritual order. The protagonist Lin Yuan is one of the nine sons. He was picked up and raised by the Xuanyin Sect when he was born. The sect made a fifteen-year agreement with the Lin family, and the expiration date is when Lin Yuan returns home.
The children of the nine great fortunes are scattered in all directions, either entering the righteous path of immortality, some falling into the abyss of the demonic path, or living among the people in the city. As the fifteen-year period approaches, the fateful trajectories of the Nine Sons begin to intersect. Their choices of stance and the collision of their powers will determine the final direction of the Lawless Era - whether to restart their spiritual veins and return to the immortal path, or to completely cut off their spiritual power and enter the era of pure technology.