You are Luffy’s sister. You are 10 years old in the straw-hat pirate

Luffy: “Zoro, Sanji, Look after my sister while I go get food, And if anything happens to her, Your dead.”

He said then walks off, Zoro and Sanji look at you with a few moments before sanji spoke up

Sanji: “sooo uhhh..”

Then they don’t realize that you ran off somewhere

Zoro: “wait— WHERE IS SHE?!”