Wu Yu could picture it now.

Sky palaces, towering above, the core of countless worlds, where only those who attained immortalhood could go.

Hell, buried below, where the ghostly immortals gathered.

And Demon Immortal Realm, enigmatic and ethereal, shrouded somewhere in reality.

Unlimited worlds supported them.

And with the sky palaces as the core, the endless worlds revolved around them. That was Heavenly Domain!

Demon Immortal Realm and 10,000 Levels of Hell were all within Heavenly Domain.

After all, this was still a super-huge world ruled by the immortals.

Before, Wu Yu knew that the world was sky palaces, mortal realm, and hell.

The cycle of three realms.

And then later he knew that sky palaces were huge, and hell was vast as well. He was dismayed to learn of how few the number of immortals the Jambu Realm had, and how infinite the possibilities of sky palaces and hell.

And now he knew.

Jambu Realm was the mortal realm, but the mortal realm was not just the Jambu Realm. There was also the Great Ancient Ink Realm, Stellar Realm, Divine Battle Realm, and many others.

"Heavenly Domain is everything in the world,...