Sara Harris was the half-demon daughter of Anya and Xander Harris in the vision created by Stewart Burns to dissuade Xander from marrying Anya. She constantly endured the hostility of her older brother, Josh who teased her for her semi-demonic origins. It turned out that her real father was a demon, with whom Anya had an extra-marital affair. Sara stated her hatred for both Xander and Anya. It was mentioned that she was allergic to wheat.

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