Nightmare Scavenger

Fifty years after the Great Cataclysm, humanity had astonishingly rebuilt a unified order and civilization on the ruins, and everything seemed to be thriving.However, in the hidden corners that most people couldn't see, darkness and evil were slowly sprouting.At the same time, 'Nightmares' from another world were gradually eroding reality.A legendary mage, formerly a transmigrator, accidentally traveled back to his original world in an exploration accident, starting from scratch on the path of pursuing power.“Nightmare? That thing is the nutrient for me to become stronger!”