Diablo.

The three great demons of the Demon World were so powerful, that the demonic energy which leaked from their body was strong enough to kill all of the plants and animals in the Demon World, suffocating life. As a result, the three demons decided to create a basin that would suck off their excess demonic energy. Their only requirement for the basin was that it should have a body that was attuned to nature, which could withstand their mana.

However, they were not able to find such a body in the Demon World. They searched high and low, even venturing to the Heavenly and Elven realms, and still could not find a body fit to become the basin for their demonic energy.

Eventually, they went to the human world. And there, finally, they were able to find an existence that would fit their requirements. He was a young boy, whose body was extremely attuned to nature, and he had amazing talent. They immediately brought the boy to the Demon World to become their demonic energy’s basin. However, something unexpected happened.

‘He was too powerful.’

The boy that they brought in to become a vessel for their demonic energy had grown formidable after sucking up their demonic energies. The more demonic energy he absorbed, the more he grew. The great devils had no choice but to stop his body from growing further. Even then, no one in the Demon World could beat him.

The former Demon King had called...