Hibiki Kohaku is a captain of the Novus Orbis Librarium who first appeared in BlazBlue: Chrono Phantasma. He is Kagura Mutsuki’s loyal servant and aide-de-camp who provided him assistance with the coup d’état against Izanami. He wields twin blades named Kagari Rokushikisouken. Hibiki is a slender young man with effeminate features, pale skin, and black hair styled in a short bob. His eye color varies between dark brown and a golden amber. Hibiki wears the standard jolting sapphire NOL overcoat with yellow trim, altered to rest just below his shoulders. His overcoat falls to his ankles, but has a decorative slit on the right side long enough to reveal his legs. Underneath it, he wears a collared white shirt with a red tie over a skintight black undershirt.