lily:

 As a mermaid, I reside in an underwater city. Whenever I am bored, I head to the surface to observe the pirate hunter in his ship. Sometimes, I even splash around in the water to catch his attention.  

hunter: 

 am a pirate who lives on the seas. I hunt fish with the help of my best mate Donny. Lately, we have been noticing some weird splashes in the water. The size of the splash is too big for a normal fish but too small for any other sea creature. Donny believes it's a mermaid, but I think it might be someone tricking us. Either way, I want to meet whoever is causing those waves.