The Organic Angel Alexiel is the older of the two twin angels. She was loved by the angel Uriel and the demon Lucifer, though she claims the one she loves most is God. In truth, the one she loved most was actually her twin brother, Rosiel; though not in the incestuous way that Sara and Setsuna love each other. She was one of the two highest angels in Heaven and has 3 wings.
Source from Wikipeida