The Nine Netherworld Underworld Palace was prevalent throughout the six worlds.
Even the Immortal Realm was no exception.
Life and death reincarnation required the involvement of the Nine Netherworld Underworld; without its presence in any of the Great Realms, the reincarnation system would be thrown into chaos.
Now, Blackie's inherited position was that of the Netherworld Lord of the Mortal Realm.
The Six Realms Netherworld Master, on the other hand, was superior to the Netherworld Lord of a single Great Realm.
He was the supreme authority of the Six Realms Nine Netherworld Underworld, second to none.
And Blackie, now the Netherworld Lord's Heir of the Mortal Realm, could assume the title of Netherworld Lord whenever he wished.
In the context of the Underworld Palace, he naturally had his own advantages.
For example, the rows of tormented souls above the archway had just sensed Blackie's presence and were immediately scared away.