This is book 1 of the Jelsa Fairytale Series
Elsa Snow never wanted anything special out of life. She only wanted a happy family, enough food it live on, and a roof over her head. But that was all taken from her when her parents died, and her and her sister were split up and sent to different families.
Elsa's new "mom" adopted her so that she would have a servant who works for free. She's abusive, hateful, and cares only for her real daughters.
All of that changes when Elsa meets Prince Jack, who she can't help but fall in love with. He becomes her only escape from the tortures of home. But mother never did let Elsa amount to anything...