The Lady of the Rainsworth household. Sharon is a member of Pandora and looks like a thirteen year old girl, although she is chronologically 23 years old. Her appearance does not change from her first meeting with Oz to after he came out of the Abyss because she has a legal contract with a chain, the black unicorn Eques.
Sharon and Break have a close relationship. It is she who discovers Break after he was found in front of the Rainsworth household's gate to the abyss. When she was young, she used to call Break "Brother Xerx," as he was like a big brother to her. She wants desperately to be of use to him, though believes she lacks the power to do so.