Perci who is a female Percy loses everyone after the war and has to go live with Kara as Kara's adopted mother is sisters with Sally. She wanted a normal life after the wars but what she got is an alien and a secret agent as cousins. A new threat is rising for Kara and the DEO and the only one who can stop it is Perci. Will she help or will she run away, not wanting to have to fight again?