Transformers Prime: Lost Daughter of the Prime (Under Editing)

On a stormy night, Justin Darby had found a baby girl in a basket on his family's house doorstep and had adopted her into the family. Jack and Erika had grew up together as a pair of siblings over the years, even after they had lost Justin. Erika knew she was different compared to other humans, especially to her adopted family.
But even the ordinary has a way to become the extraordinary. What happens when an ordinary event leads her to descover an entire alien race? Furthermore, what happens when they come to need her help to save the entire planet? Her bold decision saves a life, but forever alters the course of hers. Is she ready to save the world?
Though, Erika has a few memories of her past and kept it as a secret from everyone except from her family. But what would happen when small pieces of what she is starts to resurface? Join her in her adventures to discover who she really.

(Don't worry, I'm writing for fun).