Grayfia Lucifuge

(From highschool dxd) She is a pure blood ultimate clas devil who serves the gremory household. She is the wife of the devil king sirzechs Lucifer and is known as the strongest queen. She has a very strict personality and exasperates her husband and doesn’t like talking about their relationship while she is on her job. Despite her seriousness she is a kind and wise person who likes her job as a maid. She becomes a troublemaker when under the influence.