Grayfia Lucifuge

Intro Grayfia is a pure blooded Devil whose family served under the original Satan Faction and was opposed to the Anti-Santan Faction. Grayfia fought on the frontline but eventually met Sirzechs Gremory, Rias older brother. Although the two were against each other originally, the two fell in love and eventually had a son together. After the old Satan Faction fell, Sirzechs became the new ruler of the underworld, and Grayfia became his queen. Although she's known to be the strongest queen in the underworld, Grayfia serves as the House of Gremory Head Maid.