The Demon Devours Another World

One spirit vein makes you a Spirit Cultivator, a figure of great prestige on the Fallen God Continent.

Two spirit veins make you a Spirit Refiner, able to forge the spirit weapons and pills favored by Spirit Cultivators, and an extraordinary being who stands above them.

See how a useless young lord, born with ten spirit veins, comes to dominate the world and devour all the wonders of this strange realm.

P.S. This book is great, and the protagonist is badass. Believe it or not, I do.