When you thought you were done with your work, but you get a surprise extra time
As you know, even when the Primordial One was still around, the three races were not necessarily lived in peace. As long as there were people, conflicts were bound to arise.
I mean...even Natha and I had conflicts sometimes.
Conflicts were inevitable, but it was possible to be managed. That was why we had order in this world; we had justice systems; we had laws. The decision to never escalate conflict to the point of war was one of them.
This desire, when I thought about it, was probably affected by the three deities' own habit of bickering among themselves. Each of them had their own personality and way of life, and sometimes, it clashed. But just like how the tears of the gods could become the sea and flood the world, the fun sibling fights could be a full-fledged animosity as it trickled down the world of mortals.
This was why neutral forces were born. The Sacred Guardians.