Supernatural: Female Hunter

After Angela's parents died in a unexplained car accident Angela discovered that it wasn't really a accident that killed her parents it wasn't a who either, it was a matter of what. Angie was 6 when her parents passed and had been living with her aunt ever since. Once she discovered that supernatural beings really do exist and are not just parts of stories she has been training to hunt demons and other supernatural beings. She soon will cross paths with Sam and Dean Winchester, they are legends but what they do not know is that Angie is a legend herself but covers her tracks so she can stay under the radar and unknown. Once the Winchesters discover her darkest secret will they continue to work along her side or will they be forced to kill her without mercy?