Kohaku (コハク) is a lieutenant colonel from World Line O.
Kohaku has long, dark colored hair and two horns on her forehead, along with an eye covering. She wears a miko outfit consisting of a light colored kimono, a jacket over it, and a dark colored hakama. She carries around a staff that may double as a walking stick.
Kohaku is loyal subordinate of Kouu. She is one of the friendlier officers, not complaining when she was put in charge of the prisoners of war, and apologized for interrupting their conversation when talking to them.
Enken (遠見): Enken allows Kohaku to view things from afar, making her able to accurately track ally and enemy movements.