Chu Yan, the Nine-Heaven Demon Lord, failed to survive the tribulation, and his soul traveled through the modern city and became Zhao Yan, a young man from the bottom. But they found that the earth's spiritual energy was exhausted, and the evil energy was undercurrent. Under the neon lights of the city were hidden the ruins and survivors of the ancient war between immortals and demons. Relying on the memory of the demon king and the mysterious prison order, he rose from the bottom, traveled across the city, explored secret realms, fought fiercely against the evil cultivators of the dark abyss, and finally revealed the truth of the "End of Law" - the earth was actually a fragment of the cage that sealed the demon king.
