Demon Cultivators Should Be Merciful, for the Sake of Merit I Will Fight Through the Doomsday

[Zombie+Double Transmigration Doomsday. This book is also called: I, the Hehuan Demon Cultivator, imitates the Yellow Emperor and ascends in the daytime] Han Fei traveled across nine states and obtained the inheritance of the Demon King. He was hunted by both good and evil forces, and his life hung on a thread. Fortunately, the merit system of all heavens is activated. As long as you consume the merit, you can upgrade with one click. In order to allow Han Fei to become stronger with peace of mind, the system specially opened a doomsday passage. Han Fei traveled through various apocalypses, racking up merits and lighting up all the max levels. [Host kills zombies] [Merit value +1+1+1...] Upgrade your alchemy skills by adding points, and the elixirs you can refine at will attract countless followers from the strongest; Upgrade your weapon refining skills, and the magic weapon you can refine at will can become someone else's sect-suppressing treasure; Upgrade the fireball skill with extra points, and as soon as you cast it, endless fire of karma will cover the sky, and all living beings will be extinguished; Add points to the ice spell to upgrade, and freeze the nine heavens and ten earths with one thought, and freeze the time for eternity... Countless years later, Han Fei suppressed Eternal Life and looked back on the past: "Although I refined corpses, raised ghosts, played poison, robbed fairies, and killed countless people, I am a compassionate demon cultivator who can kill through the doomsday and become a saint through merit!"