Akashi is a repair ship, Member of Sakura Empire.

In 1937 the Imperial Japanese Navy had converted the old battleship Asahi to serve as a repair ship. After the conversion of Asahi, a decision was made to build a dedicated repair ship with better capabilities for that task.
She was equipped with the latest machine tools imported from Germany.

Akashi acts like a cat, from her "nya" verbal tic to her mannerisms, to her fondness of pets, she's portrayed as very greedy.