You are Hawks' younger sister, Hawks is your older brother. 

you have the power of lightning. you are 15. 

Hawks failed to protect you from what happened to you, with this attack. Hawks has twelve wounds on his face.
hawks thought you were dead, but you are still alive. 

and you join the league of criminals.

you can't remember your past, because the league of criminals brainwashed you, and you can't remember clearly but you know hawks voice but you don't know who you are