Setting aside the characters and qualities of Mo Rubing and the members of the Mystic Sky Sect, all of them were ultimately cultivators native to the Xuanhuang World.
Now, the main conflict in the Xuanhuang World was the struggle for sovereignty between the cultivators from other Immortal Cultivation Worlds who were swallowed up for various reasons since the Great Calamity, and the local cultivators of the Xuanhuang World.
The key to resolving this conflict lay in the Law Transmission and the Celestial Doctor.
"As for Mo Rubing, he might even offer his help at a critical moment. And King of Mystic Sky..."
From the clues currently in hand, it appeared that King of Mystic Sky, Xuan Yuanhong, shared the same goal as Li Ping, which was to rescue the Xuanhuang World from its peril. If he truly hadn't died, Li Ping wouldn't mind returning the position of Xuanhuang Immortal Master to him.