She is one of the last members of the Koukawa clan and heir of the main family branch, which had been destroyed in a Massacre performed by Black. Asuka was adopted by Asagi, growing in fame for her "Wind Art" being trained by Yatsu Kuro. Asuka is a bit of a "Gal", has a cheerful, bubbly and playful most of the time, often joking how cute she is and how nobody should be mad at her if she messes up. She is a young woman with waist length, brown hair in a hime cut, blue eyes and a large bust.