Maria is a supporting character introduced in the fourth season of the anime, appearing as a member of the Thirteen Apostles, a group considered the most powerful mages in the setting. She is known by the nickname Steel Cat, which hints at her combat style or magical specialization. Her role in the story is primarily that of an antagonist who, along with other Apostles, blocks the path of Orphen and his companions as they attempt to reach the sanctuary. Beyond her affiliation and moniker, little is revealed about her background, personality, or personal motivations within the anime adaptation.