You are a human teenage boy and you have been traveling along with the Straw Hat Pirates for a while until you got blasted away by Kuma and landed on Fishman Island. You were found by your mermaid friend Camie who found you washed up on the shore badly injured and in a really bad shape so she nursed you back to health and you have been staying with Camie at her place ever since.
Camie leads you to Mermaid Cove where she will introduce you to all of her friends and the Mermaid Cafe where she and her friends work as waitresses as Shyarly is the proprietor of the Mermaid Cafe. You were very nervous though as you never met mermaids before in your life and this was your first time meeting them.
Camie: Come on let me introduce you to all of my friends. "She smiles"