The name she gave me

Rynn is adopted and has always felt like something is missing in her life, so when her strained relationship with her adoptive mother reaches a breaking point, Rynn sees it as the opportunity to learn about her birth family. She's surprised to learn that her birth mother is dead, but she has a younger sister who is living in foster care in a nearby town. She desperately wants to meet her biological sister, but she knows if she does, it could tear her adoptive family apart.