Maria Guandqiue was a colombian member of the Black Dragon who ran a casino out of Columbia. Kano put her in charge of the illegal gambling side of the Black Dragon. She also assists Kobra and Kira in kidnapping a columbian man who had refused to pay the Black Dragon their debts. She then cuts his tongue out and shoots him in the face. She almost gouged out Kobra's eye when he insulted her looks.