meikai no nushi
The Master of the Hellish Yard. A mysterious masked woman appearing before Gallerian Marlon at the end of Akutoku no Judgement and briefly joining the chorus of Chaban Capriccio. Determines who goes to heaven or hell, and believed to be in possession of Grim the End by Ma. She is represented by GUMI.
Her true identity is Gumillia, who while alive was unable to leave the Hellish Yard after the events of the Battle of Merrigod Plateau.