A Walk by Dragons

Joe (short for Josephine) did not choose to live with her biological dad. She has siblings to take care of and a mother to protect from her abusive stepfather. But she isn't left with much of a choice. So here she is, awkward white trash transplanted to a cold mansion and sent to a private rich kid school. She'd never known her dad had money because she hadn't known her dad. It would have been nice to know when she'd been living in a roach-infested trailer eating Ramen.

But she knows the guy who keeps hacking into her email account and working around the blocks on her phone. She knows very well what a lover like that will lead to. But some relationships can't be cut off cold turkey.

She tries her best to get through the adjustment by doing what she does best: acting like she's fine, being a boss of bathroom jokes, and programming dragons that can destroy any program down to its roots with a click of a mouse.

This unintentionally garners the attention of her new school's anti-social white hacker, who half the student body fears and the other half avoids.