I Have a World of Monsters

Chen Buyu traveled to a world of immortal cultivation where humans and monsters fought against each other, and became an unknown outer disciple of the Sword Sect. He was supposed to survive in troubled times and found that there was a world in his mind completely built by monsters, and he could put real monsters into it to evolve, thereby obtaining system rewards. "The snake-tailed cat has entered the world of monsters and received rewards: low-grade spells and spiritual impact." "The snake-tailed cat has evolved to the first level of perfection in the world of monsters! Obtained a reward: low-grade wood spirit root." "The Earthfire Scorpion King has entered the world of monsters and received a reward: a mid-level spell, the Fire of Slaughter." "The Earth Fire Scorpion King has evolved to the third level in the world of monsters and beasts! Received a reward: a middle-grade fire root." "The Demon Sword General has entered the world of monsters and received a reward: a top-grade spell, which can be cut with one sword." "The Demon Sword General has ascended in the world of monsters! Get the reward: The Demon Sword of the General!" Many years later, when Chen Buyu defeated the demonic beasts in the world and ascended through the tribulation, he would recall that distant day when he was refining elixirs and feeding cats in a small southern sect. "Immortal, immortal, can you become an immortal by catching monsters?" "Shhh, I'm silent. The monsters are so powerful. Do you think there are any monsters in this world?"