Akeno Himejima

A 12th grade student and one of "Two big onee-samas" of the school along with Rias. Called the ultimate "Queen" by other members. Born between a human mother and fallen angel father. After the death of her mother, she became Rias' servant. She is a friend close enough to call Rias by her name in private, yet calls her Buchou in presence of others and displays master-servant relationship in public. She persistently refuses to use her power of light, inherited from her father, starts using it after being convinced by Ise.