She was an Omega who grew up with Hale family. Who had to run away to protect her pack. In result she became and omega. She went back to Beacon Hills for Derek's help, he was the only one she trusted. Derek made her stay with him, and sent her to Beacon Hills highschool where she met Liam Dunbar. They fell for each other, it was a battle for love. But who's playing who? (Allison and Aiden are alive. Jackson and Isaac never left)