Eru first met Nowaki when he prayed for Bambi to go out with him. She was naked when she'd suddenly come out of a bright light and met Nowaki. She accepted Nowaki then to be her servant.
Eru's usual appearance is her golden eyes and silver hair with two adornments attached to each side of her front long fringe.
Eru is usually quite bossy and speaks with an archaic manner.
- Eru means "To Gain" or "Win".