Overseer of the Floor Guardians in the Great Tomb of Nazarick, a powerful succubus NPC created by the player Tabula Smaragdina, who is now obsessively in love with the protagonist Ainz Ooal Gown after his personality settings were jokingly altered. She is a formidable demon with immense combat and administrative skills, holding the highest rank below Ainz, and is known for her ruthless nature towards humans and unwavering loyalty to her "Master".