Three-dimensionalPerhaps there's other dimensions other than ours.One-dimensionalBecause Naka-chan is an idol, so acting like a normal piece is her specialty.What we call 「Game」 is similar to shougi.Japanese chessA talking piece would be creepy.It appears that Naka-chan's admirer, the Admiral, comes from the other side of the fourth wall.In other words, Naka-chan operates with an awareness of her being one of those chess pieces.Naka refers to herself as a 3rd person.
