Promise to Protect

Harlow Morgan lives in Dallas Texas with her grandparents and Little Brother, her goal is to keep her family safe from danger like she promised her Mom and Dad. They died in a car accident when her and her brother were only 11 and 4 so they live with her grandparents. She is 17 years old, and she's a very strong girl.

Zoey Aurora moves from Los Angeles to Dallas with her Mother and her older sister, She is now 16 years old but her family is different. Her Older sister is a Bully to her, and her Mother is abusive and a drug addict to her. She secretly trained so she could try and defend herself, But feels like she can't without help.

The two meet and become friends, and soon they became more then that.
What will happen when Zoey is saved by Harlow from her Mother and sister and decides to live with Harlow's family?