Grimoire of Reincarnation: Devouring Immortals for All Times

In the First Saint Demon Sect, the disciples are all talented people - either as cauldrons or medicine guides, and they can be put to the best use. Lu Yang carries the [Book of Hundreds of Worlds], which allows him to be reincarnated and retain some of his memories. He managed to get through the Hehuan Hall to collect supplements, survived the killing in the Merit Pond, and deceived the Treasure Refining Hall into plotting, but found that the sect was just a breeding ground for powerful powers in the upper world. When the Netherworld Master wanted to harvest the Gu insects, Lu Yang devoured hundreds of generations of cultivation, condensed the true energy of chaos, and in turn devoured the First Saint Sect. From then on, only one person remained on the Demon Sect's talent list: "I am the Gu King and the Demon Lord."