Twenty years in bondage

Octavia, a beautiful and strong werewolf, was born into the family of Zaid, an Omega type of werewolves, the lowest ranking werewolves in Dark Moon Pack.
For the fear of going through brutal pains of being an Omega, her parents decided to keep her birth a secret from the outside world, as the only who knew about the poor girl's existence, is Lia, the Alpha's surrogate mom. She was locked inside the house for twenty years, not seeing the outside world. No friends, no other families, just she and her poor parents. She always sneaked out in the night to explore the woods, but always made sure to not stay out long, to avoid being caught, as it'll end the poor parents in trouble.
On this fateful day, her whole life turned into a misery, as she sneaked out in broad daylight for the first time, but got caught by a stranger, who turned out to be their Alpha, whom she had seen a couple of times, but never got to see his face. To punish her and the parents, the Alpha decided that her parents should be killed, to justify their crimes, but what happens, when the little Octavia, got consumed by her powers, and her demon took over her right in front of the Alpha, which is something that never happened in history?