Akeno Himejima is the only child of Shuri Himejima, a well-known Shinto priestess and Baraqiel, a Fallen Angel and one of the leaders of the Fallen Angel organization, Grigori. As a child, Akeno was close to her mother, and fell into despair when she witnessed her mother's death, blaming her father for not being able to protect her mother. After the death of her mother, she stayed with her mother's relative before being kicked out due to her Fallen Angel blood. At the tender age of 10, without food or money, Akeno journeyed throughout Japan using her skills to purify evil spirits that she learned from her mother in order to survive, doing so for a year and a half. When she stumbled into a certain town, Akeno indirectly saved a human that was contracted with a Devil from the Gremory Clan.