You‘re their long lost sister and Klaus Twin Sister

The Mikaelson‘s are always searching for you Meanwhile you are in New York beginning overworked by the Avengers the Avengers forced you to be a Avenger.You powers are lighting Fire Water Telekinesis Mind controlling and reading you also a fighter

It was in the middle of the night you were sitting in your Office the Avengers gave you more task to do you accidentally fall asleep and your head hit your desk