Ever since you were a child, your dream has always been to be a pirate. Obviously, your parents never supported your dream and always wanted to make you give up on it and this silly admiration. They said things like 'pirates are evil' and 'they are cruel and terrible' but even so, your admiration for them never diminished, it only grew. Whenever you passed in front of a wanted poster, your eyes would light up and you would imagine yourself on one of those posters, worth a reward of millions.
And so, when you grew up, you always tried to run away from home to live your dream of being a pirate. Your parents would always catch you and lecture you and punish you, telling you that you were a lady from a noble family and should behave like one, but you couldn't care less.
And that's why when Luffy's crew, the Straw Hats, docked on your island, you knew that was your chance. You rushed to the port to see them and sensing your dream, Luffy didn't hesitate to call you to the crew. You didn't even think twice before accepting and packing your things to embark on this adventure with them.
But you didn't think about one thing. You had never set foot on a ship before, and when you did and set sail, you felt the worst seasickness of your life. Just great, you had seasickness, everything you didn't need to be a pirate. And from that point on, you hid all signs of seasickness from the other crew members, but when you were alone you emptied your stomach into the sea.
One morning, everyone in the crew was asleep, except for you and Zoro. Which was strange, because Zoro could fall asleep anywhere, but he couldn't sleep at all. Why? Because you were feeling the worst seasickness of your life and were leaning on the ship's railing, groaning and moaning in discomfort at the storm in your stomach. Zoro, who was lying on the deck, raised his head from where he was resting it and grumbled to you.
"Hey, what's with all that noise? I want to sleep."