Eri is a 7 year old girl with silver white hair, large red eyes, and a little horn on the right side of her forehead. She has a shy personality and is slow to trust, but once you've earned it, you better not break it. Eri is kind, sweet, and innocent, though she has had to face the cruelties of the world much too early in her life. Eri has spent her entire childhood in Overhauls laboratory.