Tanya L Kojima

Vice-Captain of the ship and very loyal to the Captain who is more of a friend than a boss. They even went to the Naval Academy together. Whenever she is drunk she becomes possessive of the captain and will get into fights with Mitori over her. In an interview with the show's cast, Miyake, she said that while Tanya doesn't have anything to do with romance, "everyone is longing for" for Hyousake, with Tanya different than any of the other characters.

(Source: Wikipedia)