Is His Highness the Night King the Demon Lord of the Dark Demon Palace?

"Teacher Nan Ling, I have a question!" Dongfang Jiao interrupted Nan Ling and asked, "I heard from His Highness the Night King that the reason why no one in the Central Continent has broken through to the Divine Realm in ten thousand years is because if you want to break through to the Divine Realm, you have to use demonic energy as support. However, the demonic energy in the Central Continent is depleting."

Nan Ling stared at Dongfang Jiao in surprise for a while before nodding. "That's right. I only discovered this problem during the process of advancing to the Divine Realm. However, it's not that no one has broken through to the Divine Realm in the past 10,000 years in the Central Continent. It's just that those peak Spiritual Grandmasters have left the Central Continent and headed to the Dark Demon Realm in order to break through to the Divine Realm."

The Dark Demon World was undoubtedly a world of demonic cultivators.