The Ten Great Ancient Evil Gods slayed monsters, but they never completely eradicated them.
They always managed to suddenly appear in the void.
Then, they struck some people and devoured many from the Human Clan, Demon Clan, and Divine Strange Race.
The Ten Great Ancient Evil Gods were naturally displeased, as they took pleasure in suppressing the Human Clan, Demon Clan, and Divine Strange Race.
How could they willingly let monsters randomly devour their enslaved people, Demon Clan, and Divine Strange Race?
So, they later constantly dispatched one of the Ancient Evil Gods to patrol the entire world.
Whenever a monster appeared, it was directly slain
to prevent these monsters from further harming the Human Clan, Demon Clan, and Divine Strange Race.
This battle lasted for ten thousand years until the lifespan of the Ten Great Ancient Evil Gods came to an end, and they began to die.
They returned to heaven and earth, disappearing without a trace.
