Ouros was once a promising apprentice to Oleron many years ago. He left when he decided that Oleron's research was to "mundane". He began experimenting on organic substances, even on himself. He soon learned to create living creatures from inorganic components. His most successful creations are small creatures known as Homunculi. It was Ouros that created the tiny imp-like creature known as Izabelle. He sent her to the Black Citadel to spy and report back to him.