I Became an Immortal in the Tomb

Everything in the universe has its end, and even the Immortal King and Demon Emperor cannot escape the shackles of reincarnation. In order to avoid the catastrophe, the powerful men from all over the world have sealed themselves in the tombs, waiting for the door of immortality to open. The tombs of all things are divided into five categories: immortals, demons, monsters, ghosts, and humans: the tombs of immortals are located above the nine heavens, the tombs of demons stand on the top of the ancient world, the tombs of demons are hidden in the ruins, the tombs of ghosts are located at the junction of Yin and Yang, and the tombs of humans are entrenched in the dragon veins of Jiuzhou. At the end of ancient times, a humanoid stranger accidentally obtained a book in Huangling that recorded the method of finding all the tombs in the world, and named it "Potianlu". Fight for the good fortune of heaven and earth, break the shackles of fate, and explore all the truth in the world.