Immortal Wuji: Become a Guardian Spirit at the Beginning

[Cultivation of immortality and sweet text + creation of power + funny plot + behind-the-scenes boss + no-nonsense text + saving the world + reincarnation of the Emperor of Heaven + online IQ + strong sense of immersion] After Feng Wuji died, his soul traveled to another world and became the guardian spirit of a young lady. When the demon thought he was mentally weak, he stabbed him in the back. While other guardian spirits were restricted by contracts, he could travel between the three worlds at will. When everyone thought he was just a guardian spirit, the force he created has become the number one in the world. When everyone found that the world had become peaceful and stable, he had taken his confidante to a more wonderful world. The introduction is weak, please move to the main text.