|Ookouchi Maria大河内 マリア|
|Hair||Braid, Braided Hair Loopies, Orange|
|Clothes||Ribbon Hair Tie, School Uniform|
|Role||High School Student|
|Visual novels||Main character - Hoshigari Empusa!|
|Voiced by||Kawakami Tomoko|
Maria is a sophomore, and it is surprising she was able to enter Koutenrin since she is not from a rich or famous family, and pushed away from her parents to enter the school. She is a very energetic and loud person, and also a bit of a trouble-maker, as her forceful attitude leads to fights. Her weak point is she is sensitive about her physical features, and her special ability is being mischievous.