Need name of this anime/manga 또는 if the 아니메 is not known, an anime/manga similar to it. Help!?

From what I can remember, a girls parents are murdered protecting something, maybe her. She runs away and her parents (or maybe supposedly parents) murderers are hunting her now. If I'm remembering this right the reason her parents were murdered is because they 또는 she alone has some sort of special power 또는 ability, that she didn't know about. Something like that.

I'd be really grateful if anyone could find this anime/manga but if not something similar to it. Thanks!:)