The Angels Have Fallen (gxg)

The archangel Lucifer had led a coup against God and send the Heavens into a fierce war. With the sacrifice of the archangel Gabriel, the ones who rebelled against God was sent down to Earth, where they continued to cause problems. Elan was a young talented girl that just been ordinated as a priest, protectors of the Earth. Growing up in the walls of the church had given her a strong sense of justice, but her stronghold started shaking from its foundation when she met Rei, a girl born from a human and a demon.