Killed Alpha's Sister Before the Wedding

My father was a rogue, but by the moon goddess's blessing, he formed a mate bond with the sister of the Alpha of The Blackwood Pack. They were deeply in love and had eight sons together, yet I, their only daughter, was the most cherished in the entire family. When I fell ill as a child, my mother prayed for my recovery for three days and nights before the moon goddess's temple. Once, when my older brothers took me out to play, I accidentally cut my face. My mother was so furious she had them strung up and whipped for three days straight. My father taught me all his skills, holding nothing back. Everyone in the family doted on me, treating me like a precious jewel. Before I even came of age, the Alpha had me betrothed to his most favored adopted son. I always told myself that one day, I would repay them for everything they had given me. And so, three days before the wedding— I personally slaughtered every last one of the several thousand family members. I severed my father and mother's heads, skinned them, and made a coat from their pelts.