Angels Can Die

Anastasia was a normal teenage girl, she had a happy life. She lived with her parents and her newborn sister. She and her boyfriend Jensen were one of the happiest couple. One night everything fell apart, she had just turned 16. Demons came to her home and killed her parents and took her sister. She figured out who she was and who her little sister was, future angels. Her life fell apart piece by piece except for one thing her relationship. Now Anastasia is 17 years old, looking everywhere for her little sister, with the help of her boyfriend. They were hoping she wasn't dead. They're going where a weird death was to see if they can capture the demon who did this and question them. Sometimes they see their friends Sam and Dean in the case.

Something happens to make Anastasia powerful, maybe it'll help them find her sister or create troubles for them.