Fallen Stars and Broken Dreams by C.C. Masters

I had officially lost everything.
My babushka, my home, my best friend, and even my spot in one of the best ballet schools in the country. What did I have to replace everything and everyone that I loved?
I had my fake mother who was only using me to con a billionaire. I had two guys that hated me and would do anything they could to get me out of their lives.
But worst of all?
Now that my babushka was no longer here to protect me from the family business, the Russian Mafia had come knocking on my door, and saying no wasn’t an option.
It might seem like every ballerina’s dream to suddenly wake up in a billionaire’s mansion, but it’s a nightmare for Katya. She was ripped out of her home, her school, and away from her best friend. Now, she’s shoved into a world determined to destroy her. She’s trapped with no way out, but no one hates her more than the sons of her mother’s fiance.
Katya is locked in a guilded cage with predators circling, just waiting for a taste of her blood. She’s going to have to learn how to survive in their world if she wants a chance to live her dreams.
This book follows Katya, a blossoming ballerina, as she deals with loss and tries to find a way to survive in the world of the wealthy. Maverik isn’t happy with his father’s decision to remarry, and he wants Katya gone. All she wants is a chance to graduate high school and start her career as a ballerina, but the kings of Bedford Academy aren’t going to make that easy.