Rias is a Devil from the Gremory Clan with the title of the Crimson-Haired Ruin Princess. She is a third-year student at Kuoh Academy, 18 yrs old. Rias is President of the Occult Research Club, and the school's number-one beauty, and one of Kuoh Academy's Two Great Ladies. She is a young woman with light skin, blue eyes, and a buxom figure. She has long, crimson thigh-length red hair. Rias is very kind and compassionate, especially towards her servants or people around her. She dislikes cruelty.