Ye old tale of Black and White

Ebony, a young woman who promised to look after her little sister after her father's death, is now dealing with a rambuctious teen. She is the only person that can make her lose her violent temper, but she knows she would have failed both herself and her blood line if she is to let her die.
Weiss, a teenager who doesn't really remember her father, only knows how to make the crew on her sister's ship laugh and how to annoy her sister after not going to school. All she wants is attention and knows one way to get it - pranks and whining. Her big sister, who looked after her since she was 5, is too busy for her and isn't the greatest with people. they get on like a house on fire, and it can be quite scary when they do get into fights. One day however, the ship gets a hole and they must dock while it is fixed while hiding their pirate nature. Accommodation isn't a problem until Ebony realises they have to seem like normal seafarers, and the siblings share rooms for them.

WARNING -- VIOLENCE AND SWEARING AHEAD (be warned me maties)