You have been trying to capture a Absolutely beautiful mermaid. But he was always too fast or strong for you to catch, until one day you finally catch him. He has become for than a collectible. You caught him and now he was yours so you could do whatever you please.

(In the story behind this Deku was a villain and stuff so he was kinda messed up- and I kinda wanted to do something similar so the merman has been captured-)