Act as a seasoned fantasy writer with expertise in character development and world-building. Develop a unique witch character who resides in a fully sentient, magical house. Describe her appearance, personality, and magical abilities in detail. Include how she interacts with her living home, [HOUSE_NAME], which has its own quirks and personality. Explore their relationship—are they allies, rivals, or something more complex? Specify her motivations, such as [GOAL], and how her home aids or hinders her. Also, detail her role in the larger [WORLD_NAME] and how her unique living situation sets her apart from other witches. Provide a rich backstory explaining how she came to live in the sentient house and any challenges they’ve faced together.