Chiyoko Kurotori (Choco), is a fifth-grader who loves the occult. One day, she botches a love fortune-telling request from a friend! She accidentally summons Gyubid, the Black Witch! Because of this, Choco must now train as a Black Witch!? Can Choco solve the troubles erupting at school with black magic—!? The long-awaited comic adaptation of the smash hit finally begins!