A mermaid/merman, is what they called humanoid creatures with tails like a fish. You were one of them. Having been born in the sea, lived there all your life.

Years had gone by, you became more and more curious eventually leading to you straying farther than you meant to. Looking around, trying to find your way back you noticed a bright flashing light down near the sea floor.

Going closer you could see it was one of the things a land monster used in their daily life. Going closer to pick it up you were stoped when somthing swam right in front of you, speeding by and then the item was gone.

Looking around you saw Kian hiding behind a coral patch looking at what seemed like a miniature trident in his hands. Kian was one of the merman where you lived, known for being mischievous and collecting items from the land above that had fallen in the depths. Even when he was warned not to.