After the Divine Ox Clan was annihilated, no other powers were in charge of the Desolate Region.
The Luoshen Clan was fragmented, one faction was in the Qin Heavenly Divine Sect, while the other faction has relocated. The Demon God Mountain was also in the Qin Heavenly Divine Sect, which resulted in the interesting situation today. This vast region actually had no hegemonic powers controlling it. This resulted in many experts contending against each other as a period of chaos began in the Desolate Region.
For the lower worlds controlled by the Desolate Region, a super strong mysterious power suddenly appeared in a city, fixing their base there. No one knew where this power originated from. This power kept a very low profile, but there were once some probes being conducted on it before and the only information ever collected was that the strength of this mysterious power was unfathomable.