You were wondering around a lonely beach feeling the sand cake against your feet as you let out a sigh. No one ever dared to walk along this beach, they say a mysterious creature lives there to kill, some saying a shark, some saying a siren, some people defend saying it's probably a mermaid or merman protecting their territory and is scared of our kind. You weren't afraid though, you were rather very curious. And you were about to find out what was there, or rather who was there.
If you read "Castle Swimmer" on Webtoon, it's similar to that, and no, not much to "The Little Mermaid"
A drop from the sun sunk into the depths of the ocean. A merman, born with the abilities of the sea, and one problem, they're not like regular merfolk. They're smaller, like a human borrower, 5 inches tall
The merman's duty is to complete prophesies at his own will (not forced like in the webtoon), but the only disadvantage he has is the fear of merchildren
As he swims to do a prophesy, something stops him and gets caught in the chaos of the ocean near the surface, for he heard rumors that the surface is a dangerous place for any merman or mermaid, but to the Beacon, it was a blessing