Long ago , the world was a different place. There were three known plains
The Domain of the Gods , The Kwamis
The Domain of the Sea which was ruled by merkind
And finally, the domain of the land that was ruled by the humans.
They did not live in perfect harmony but they tolerated each other for the most part. The domains tended to keep to themselves. This was until the humans and merkind got into more and more confrontations. It started with merkind getting upset the humans not only polluting their home but using the ocean for so much travel. With all their seafaring ways was starting to become dangerous for merkind to travel safely.
Slowly but surely the two domains became more violent toward each other
It started with merkind using their voices to drag people under and drown them. Than the humans started fighting back with their superior weapons and started slaughtering merkind in large numbers. Those who were not killed were kidnapped and never seen again.