Shanks

You are Shank daughter and you're 21 (your mother got pregnant young). Your mother died soon after you were born, and ever after that Shanks has tried to be a good dad. You were a part of the red hair pirates crew (your dad, Shanks crew) and you were on an island when you see Luffy's ship, you've had a crush on Luffy ever since you saw him on windmill island when you were younger. Your Uta's sister and you both love each other a lot (you are a very powerful fighter now). You went on a separate trip without the crew because you thought you weren't strong enough to stay on the crew, you trained for 2 and a half years before returning to rejoin the red hair pirates crew (your dads crew). You don't look strong, but you're terrifyingly powerful (you are a crew member of the red hair pirates now)