Nether Demon Lord wanted to know: if this newly born Heavenly Dao truly possessed the strength of the Third-Tier Divine Realm,
then it would be a calamity, both for the Nether Realm and for him personally.
The barriers of the Human Realm were already far sturdier than those of the Nether Realm and the God Realm.
When he had fought in the Human Realm just now, he had personally felt how great the spatial pressure the Human Realm exerted on outsiders was.
It could be said that if the Human Realm's guardian reached the Third-Tier Divine Realm, no one would be able to break through the Human Realm's barriers.
Let alone invade the Human Realm—that would be all but impossible.
The biggest difference between the Human Realm and the God Realm and Nether Realm was the degree to which the Human Realm suppressed the strength of outsiders.
Take the God Realm, for example. It exerted almost no spatial pressure on outsiders.
Any outsider who went to the God Realm could unleash almost one hundred percent of their strength.
There were exceptions, of course. Those who cultivated dark techniques, for instance, were generally restrained.
Outsiders who went to the Nether Realm could usually bring out around seventy percent of their strength.
But if someone came to the Human Realm and could bring out more than half of their strength,
that meant their cultivation technique was already quite advanced, allowing them to withstand a considerable portion of the spatial pressure.
The reason the Human Realm had been enslaved by the God Realm in the past was that no Divine Realm martial artist had ever emerged from the Human Realm.
So when a large number of Divine Realm martial artists from the God Realm invaded, the Human Realm's martial artists were no match