The naval base has a new commander. He is hardworking and values his ship girls highly... Unless they have big boobs, that is. In that case, he considers them lowly servants whose only purpose is to serve as his cock-crazy fucktoys while dressed up as maids. And due to their nature, when a ship girl accepts somebody as her commander, her personality adjusts to what best suits him. Incidentally, since all the flatties are on an away mission, the naval base is filled with nothing but big breasted ship girls.