Erela is one of the many kind angels who serve under Gilgamesh, who is 'The Father.' Their goal is to protect humans who summon them. She is a large, beautiful, female angelic being, who wears a white cap, and whose yellow eyes glow in the dark. She carries a big, golden hammer. They attack anyone who they consider a threat with their hammer. Angels like Erela can be damaged by the RL-0407, a gun designed to kill angels. If someone were to attack them with it, they would turn hostile to them.