Each of these planets represented a world.
Among them were large worlds and small worlds.
Some of these worlds had existed for long enough to become ancient, even older than the Nine Domains World.
Others were newly born, occupied before they had even had the chance to develop.
One had to know that not every world was qualified to remain independent.
The reason the Nine Domains World could remain sealed off and independent was because it was itself a large world.
Unless a giant world invaded it,
other worlds, even large worlds, would be unable to breach it.
This was the Nine Domains World's source of confidence.
True giant worlds, meanwhile, were exceedingly rare.
In the entire currently known universe, only sixteen giant worlds had appeared.
It could be said that among tens of thousands of worlds, giant worlds were truly one in ten thousand.
That was why the Nine Domains World had remained unharmed all these years.
But some other worlds had not been as fortunate as the Nine Domains World.
The most famous among them was the Giant Realm.
It was a newly born world, and merely a small world.
Although the world's Heavenly Dao had sealed itself away in self-preservation, it still failed to escape disaster and was invaded by another large world.
The world that invaded them was called the Underworld King Star.
The Underworld King Star was several light-years away from the Giant Realm, an exceedingly distant distance.
Yet one day, their massive army arrived here and occupied the Giant Realm.
They enslaved all living beings in the entire world.
The Giant Realm was quite close to the Nine Domains World.
It could be said that the two worlds were practically opposed to one another.
Back when the Nine Domains World was sealed, the Giant