Asahina Mafuyu is a Color Fixer that is assigned the "Black Silence" Color Title, this Color Title was previously assigned to her wife, Yoisaki Kanade, who was killed during the incident known as "The Pianist", wherein a Distortion appeared in the Backstreets of District 9, and killed many of it's residents, including Kanade. After the Pianist was eventually slain by Mafuyu, using the Gloves of the Black Silence, which she took from Kanade's corpse, Mafuyu swore to track down the one caused it.