Alisa

Alisa (アリーサ, Arīsa) is a pirate captain and a realy skilled gunsmith. She is originally from an island that is located on the first half of the Grand Line and the reason why she became a pirate was because during many years she heard stories about famous pirates and their adventures. She created a pirate crew to be able to live several adventures as those she heard for years. The crew get the name of Gun Grave Pirates that was given by her old friends when she left the island. It was later revealed that she is the daughter of a marine and a former pirate but until now she's never met the parents.

When she was younger she found a devil's fruit unknown but decided to leave him because I was afraid that something bad may have happened. Despite being the captain of the ship she is not part of the three stronger but despite that she is the most intelligent and when in dangerous situations she's the first to remain calm.