Black Lack

is a japanese manga series written by Kuno Midori. It began serialisation in the March 2013 issue of Manga Time Kirara Forward.

The series was released under 2 volumes from October 2013 to March 2014.

Synopsis
The only "witch" in this world is Guuta, self-degradation, and sometimes the strongest. Requests come from all over the world under the "witch" who wears black clothes and controls the unique power. Cinderella during her marriage, Snow White, her stepmother ... Her hobby is "color gathering". A colorful adventure miracle of the unfortunate strongest heroine drawn by the newest, Kuno Midori!

(Source: Amazon JP - Translated)