Title: Lord of the Magus World
Link: https://www.webnovel.com/book/lord-of-the-magus-world_19681725406071805
Synopsis:
He was born in a dark world - a world where souls were traded like coins, and a person’s life wouldn’t amount to much. A demon who'd been born on the battlefield and survived decades there. A demon who began from the bottom of the hierarchy and gradually ascended to the top.
His name was Leraje. Leraje eventually met his death in the hands of the Demon Lords after years of living and battling on the battlefield. At that time, he believed it was the end. But the world had other plans for him. Within the darkness full of despair, the demon finally awakens, only to discover he was reborn as a human!
Waking up to be faced with a string of mysteries, Leraje finds himself reborn as Seth Darkmore, where he sees a world filled with magic, artifacts, guilds, empires, and otherworldly planes. Follow Seth as he explores the hidden organizations, lost realms, sweeping across worlds, vying to become a supreme existence!