Under the modern city, there is a thousand-year-old cultivation force "Xuanmen" hidden. With the purpose of "secret protection of the Tao", they secretly guard the balance of the world. In ancient times, Xuantian Sect exhausted the sect's secrets in order to seal the demon lord, and the "Longyuan Cauldron" left behind became a treasure coveted by all parties. The life experience of the male protagonist Long Yuan is closely related to the "Chaos Spiritual Vein" contained in the cauldron, and the demon lord's remnant soul quietly revives with the help of the technological product "Psychic Chip", and a cause and effect spanning a thousand years is about to unfold.
