Yuki

Yuki: The mysterious little girl who was responsible for the duel between Dorry and Borgy. She appeared in a small flashback in the Little Garden arc over 100 years ago in 1422. Her origin is unknown, she was dragged along with the Giant Pirates. When Dorry and Borgy caught 2 two huge Sea Kings, she betted them to see which is bigger. This debt became a duel and the reason of their duel was forgotten. After that it's not known what happened to Yuki but since this event was 100 years ago, she may have died of old age.