Neptuna A. Mardoll

Neptuna A. Mardoll is a born to a  and a, hailing from the illustrious. Whilst she was very young, both her parents died of sickness and left her an orphan. She was a rather unique girl, even for a hybrid, for she possessed the traits of a human regularly, with the ability to manifest the traits of a Fishman or Mermaid on a whim. Other children viewed her as "unnatural" because of this, leaving Mardoll without very many friends whilst she grew. This lead into her being a rather introverted teen and eventually adult, despite the fact that she left her home to become a pirate at the age of fourteen.

During her travels, Mardoll trained her natural abilities as a hybrid of two aquatic species, becoming both revered and feared for her mastery over the element of water. Her ability to command the primordial force of the sea itself has often been mistaken for the possession of a or  type, confusing most due to her retaining the ability to swim. This command makes her a danger to all Devil Fruit users, as she is capable of controlling their key weakness with a skill equivalent to that of a god of the seas. Her command over water has gifted her with the epithet of The Water Witch.

Her travels had taken her all across the, with her name spreading far and wide even beyond that. Her skill and her fearsome ability in battle is what prompted the known as the Mad Monk to approach her with the request for her to join his crew. Having gone her whole life without having anyone to truly call a friend or companion, she jumped at the chance to feel as though she would belong. In order to attempt to lower the fear she brought about when in certain circles, Mardoll started going by the alias Aquila of the Sea.

Trivia

 * Mardoll's appearance is based off of Juvia Lockser from the Fairy Tail animanga series.