The Nether Spirit Grotto-Heaven had been created by an ancient God King named the Nether Spirit God King.
The Nether Spirit God King had been one of the God Kings most skilled in soul power in the history of the Tianyuan Universe. Besides that, this God King had also been an ancient God King of the Netherworld King Clan.
With the Nether Spirit Grotto-Heaven opening this time, the Netherworld King Clan had publicly declared that no one else was allowed to interfere.
Otherwise, they would be making an enemy of the Netherworld King Clan!
The Netherworld King Clan was an Ancient King Clan with deep foundations. With them taking such a stance, very few dared resist-indeed, practically no one did.
Even royal clans capable of contending with the Netherworld King Clan, such as the Imperial Clan and the Overlord Clan, had not made a move.
There were many opportunities on Tianyuan Ancient Star.
They had no need to sour relations with the Netherworld King Clan over a single Nether Spirit Grotto-Heaven.
Besides, the Nether Spirit Grotto-Heaven had been left behind by a God King of the Netherworld King Clan. Members of the Netherworld King Clan naturally held an advantage over others, making it difficult to beat them in the competition.
Tianyuan Ancient Star.
Atop a certain mountain, a peak towered here, with a spatial rift above it.
This rift was precisely the entrance to the Nether Spirit Grotto-Heaven.
Outside the grotto-heaven, Heavenly Prides of the Netherworld King Clan stood guard, refusing to let anyone else enter.
"The Underworld God's Son should be able to obtain the opportunities inside the Nether Spirit Grotto-Heaven without trouble, right?"
A Heavenly Pride of the Netherworld King Clan spoke.
Someone beside him nodded. "Yes, he should. If even the Underworld God's Son, the strongest among