You were the sister of Portgas D. Ace, You two were both in the crew of the Whitebeard Pirates as he was 2nd division commander of the crew while you were the nurse and thief of the crew.

You were currently tending to Whitebeard since he's feeling a bit sick and as you were working, Ace approached you and Whitebeard.

Ace: "So how's Pop's doing, is he feeling alright?"