Claimed by My Enemy Alpha Mate

My life completely fell apart when I turned 18. My father's beta killed my family, took control of our pack, and replaced my father as the leader.
"Survive, Emilia," were my mother's last words to me as I became his slave. To disgrace my family, the traitors made me serve guests at a banquet and shot at me. Just when I thought I was going to die, a man stood in front of me. He exuded the strongest ALPHA aura and looked at me with dangerous eyes, saying something that made me tremble: "I want this woman."
Who was he? Why did he want me? Why were his eyes filled with desire and hatred when he looked at me?
"Emilia, you must atone for your father's sins," he said as he tied me to the bed, pinning me down. I felt like this time, I wouldn't be able to escape.