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 place, in a world where souls were traded like coins, and a person’s life wouldn’t amount to much. A demon who was born on the battlefield and survived there for decades. A demon that started from nothing and slowly rose up on top of the demon hierarchy.
After living and fighting on the battlefield for years, Leraje finally meets his end in the hands of the Demon Lords; at that time, he thought it would be the end. But the world had other plans for him.
After falling beneath, the ground of a bottomless world, within the darkness full of despair, the demon finally awakens, only to realize he was reborn as a human!
With his profound wisdom and battle experience, in a world of cruelty, follow Seth as he explores the mysterious organizations, forgotten realms, sweeping across the world, vying to become a supreme existence!