Sharon Rainsworth (シャロン＝レインズワース)

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.

(Source: Official guidebook)