In the Great Cataclysmic War six hundred million years ago, the entire universe's human race suffered heavy losses. Not only did humans from the Nine Great Divine Realms participate in that war, but some powerful individuals from single worlds also directly joined in.
Even though the single worlds were created by Supreme Heavenly Venerates, they could continue functioning even if all the Nine Great Divine Realms were destroyed. However, the Nine Great Divine Realms hold extraordinary significance for humanity; they are the foundation and cradle of the human race.
Even the earliest Heavenly Venerates walked out from the Nine Great Divine Realms!
In the Great Cataclysmic War, some human Supreme Heavenly Venerates also fought on the front lines, and many Heavenly Venerates fell in that battle. Of course, the Sky Demon Clan similarly lost some Demon Kings.
Due to the heavy losses of the members of the Nine Great Divine Realms, each one now cherishes its warriors greatly.
