The conflict between All Gods and the various clans, as time passed, evolved into a war between All Gods and the human race after the present era emerged.
Or rather, it's a war with the humans who carry a crucial key part.
The Immovable Immortal Dynasty carries nothing essential for the evolution of the present world, nor does the Demon Clan here.
Unless someone emerging here is powerful enough to influence the whole situation, from beginning to end, no one pays attention here.
If not absolutely forced, Jiu Nian is worried about being captured and suppressed by the Mountain Lord again, he wouldn't choose to hide in the Immovable Continent for a while to restore some strength.
Now, having slightly restored a lot of strength with more means at his disposal, Jiu Nian sets his sights on the Four Divine Dynasties.
What the Mountain Lord carries is something no one can take away, beginning with the Four Divine Dynasties is certainly the best option.
