Northern Heaven was the territory of Son of Heaven Yin, with him residing in Mingdu. The gigantic landmass was created from a piece of Earth Count's horn, similar to Qin Mu's Qin word land.
However, apart from Earth Count's horn, there was also the netherworld sea. It was a treasure refined by Son of Heaven Yin. The majestic netherworld sea wasn't smaller than the Mingdu continent.
Outside Mingdu were star regions formed by 40 star constellations, with numerous heavens floating among this vast universe.
That day, Son of Heaven Yin had also led the great army of Mingdu towards the celestial heavens, preparing to attack the Great Void.
The four great sects had suffered a huge defeat in the Great Void, and the ten Celestial Venerables were angered. This time, they had mobilized the powers of Son of Heaven Yin and the rest of the four deities, preparing to level the Great Void in one blow.