Endless Sea, Xu Ling Grotto-Heaven!
Ever since the war more than a hundred years ago, not only had the human race and the Demon Realm reached a balance, but even the Grotto-Heavens and the Ten Nations were exploring a path of peaceful coexistence.
Strictly speaking, the current Grotto-Heavens were still above the Ten Nations.
After all, strength was everything. Although the Ten Nations were developing, they were still inferior to the Grotto-Heavens in terms of strength.
But for some reasons, the Grotto-Heavens needed the Ten Nations to continue to exist.
This was how the current situation came about.
The Ten Nations and the Grotto-Heavens coexisted. The Grotto-Heavens didn't interfere in the internal affairs of the Ten Nations, but the Ten Nations needed to worship the Grotto-Heavens.
When facing the Demon Realm, the Ten Nations and the Grotto-Heavens were allies.