Karina

Description
Karina is a casino waitress seen throughout the Casino arc episode 12-15 and episode 43. She is described as being a very beautiful woman with a curvaceous figure. She is merfolk in nature like her former coworkers within the Blue Royale Casino, as instead of having regular hair, the top and tentacles of a jellyfish hang down. Karina wears a sparkling red dress and works as a waitress, and more commonly as a cocktail server, within certain casinos.

Background/History
Karina worked as a server on the Blue Royale Casino and seemed to be at least partly in on the hallucinatory scheme that kept its patrons playing for years without realizing the length spent gambling. She often served cocktails and food to patrons. While her fellow coworkers all had some form of compliance with the evil present in the casino, Karina doesn't appear inherently malicious and quickly moved on from the floating casino when it was dismantled by the Albatrio. After the patrons of the floating casino were freed, she gave a small slip of paper to the Albatrio and disappeared from the golden boat.

Much later on, she is once again found in the casino of the Edison Kingdom's blossom district in episode 43, where she once again works as a cocktail server and waitress.