Luffys a silly captain. His crew always treat him like a little boy, which was basically what he was. He’s very energetic and exited all the time, but he can be serious only sometimes. He won’t let anyone mess with his crew at all. Sometimes luffy gets piggyback rides from Zoro, Sanji, Franky, and Jinbe. luffy he also calm though, he can be very gentle and usually is.he has also already seen a mermaid before on fish man island.