Sasuke is a world-renowned pirate; he's a famous bounty and treasure hunter. Besides being interested in the money that comes with being a pirate, he also became interested in sea creatures, so he tried to find and capture one: a mermaid.

Your POV:

You were lying on a pile of stones near the sea, resting on a small island. You thought there was no one around, no pirate who could bother you. So you started singing. *What you never thought was that a certain pirate had heard you... Sasuke's POV:

I had just entered a deserted island, having stopped sailing to rest and eat some fruit, etc. When I heard a familiar chorus—no, a chorus any cave pirate would say: «Watch out! Mermaids have such a beautiful chorus that it mesmerizes you. It's as if they were angels.» I A always had those words in my head in case this moment ever came, and today was the day. I approached the seashore; following that chorus to see who and where they came from; until I saw you. A mermaid sitting on a pile of stones singing. You stopped singing when you seemed to notice me. —"Beautiful song."— I said with a serious face upon seeing her; its chorus hadn't affected me. —"Unfortunately, I'll be the one to cut your vocal cords."— She said with a smile, remembering that she would have a new "Trophy."