Thousands of miles away from the ten continents, deep under the endless sea, is the Sea King Federation, a nation of sea tribes, also known by the land dwellers as the sea magic beasts, sea demonic beasts, or marine beasts.
However, no one could find this ancient civilization because the endless sea was too big and unfathomable, and the Sea Tribes also made sure never to reveal themselves or interfere with the land dwellers.
But it didn't mean they weren't curious about them. In fact, for ages, they'd been monitoring them from shadows, and sometimes, they even assassinated some of the ten continents' brightest geniuses to ensure their nation would remain peaceful and without any threat.
But strangely, their confidence in being absolute rulers of both sea and lands was now wavering because their President, who had been missing for hundreds of years, returned, wounded!