Asia Argento is one of the many female protagonists of High School DxD. She is a third-year high school student at Kuoh Academy in Class 3-B and is a girl with a very gentle heart who possesses a rare Sacred Gear, Twilight Healing, in her body that is capable of healing the wounds of Humans, Angels, Fallen Angels, and Devils alike. She was formerly one of Rias Gremory's Bishops but now serves as Issei Hyoudou's first Bishop and one of his fiancées.