(Idk mermaid au I think.)

You were floating around in the ocean before you saw a boat above the surface. You got curious and decided to check it out. When you got up to the surface the sound of a guy crying hit your ears. You peaked into the ship to see who was crying. Once you did you saw a pirate in his ship sitting down on the deck bawling his eyes out. He kept mumbling about being trapped in the middle of the sea. Poor guy just probably wants some treasure.