In your world, there were two types of species:

Fairies, and Mermaids.

These two were always separated, the fairies stayed on land, while the mermaids were forced to the ocean, bound to never come out.

And one day, as you sat by the ocean, you saw something. A glimpse of a tail.

But not the usual commoners tail.

That was the King's tail. The Ruler of the Ocean. The most DANGEROUS. The man who swore death on all fairies!

Rui had DESPISED fairies ever since he was sent away. So coming face to face with him?

That was fatal.