Lucifer's moth

Grayfia Lucifuge (フランドランド, Gureifia Rukifugusu) is the wife and Queen of Sirzechs Lucifer and the mother of Millicas Gremory. She is also the older sister of Euclid Lucifuge and the sister-in-law of Rias Gremory. Grayfia is known as the Strongest Queen and the Silver-Haired Queen of Annihilation, and is the only member of Sirzechs' group remaining after the events of the Great Demon War.
Appearance
Grayfia is a beautiful young woman with a curvaceous figure, appearing to be in her early twenties with shoulder-length silver hair braided long on each side with small blue ribbons at the ends, while the rest is left loose ending in twin braids and red eyes.

While on her day off as a maid, Grayfia's usual attire has a few noticeable differences; she appears younger, her eyes are red, and she wears a faded pink hair tie, unlike her maid uniform which is blue. Her outfit consists of a black shirt with golden caramel accents on the edges and horizontally near the bottom, with two light gold lines running along the shirt; and the shirt is slightly split above her stomach, revealing her midriff. A long, light blue scarf made of a lightweight material hangs around her neck and shoulders, reaching her hips. Her jeans are blue, with a white stripe at the top. Grayfia is 174 cm tall.
Personality
As a Demon Lord and former heir to the Lucifuge Clan, Grayfia is very strict and serious with a calm, dignified, and refined personality, with impeccable etiquette.

As Sirzechs' wife and queen, Grayfia is often annoyed by her husband. She also dislikes acknowledging her relationship with Sirzechs when he is "working," to the point that she pinches Sirzechs' face if he mentions it and denies it. Grayfia also has a problem where she becomes a "troublemaker," as stated by Azazel, who was informed by Sirzechs.