Your the daughter of persephone and hades and the princess of the underworld. You are only imortal in the underworld. During the battle of labyrinth when nico(your half brother), sends away minos you appear. now you have to try and get back to the underworld one way or another. you are 115 but go by 17. This is percy jackson and the olympians

Nico can be described as depressed and emo. He has alot of trauma. This is mark of athena but when nico trys to close the doors of death he brings you. You are his older sister or brother(not bianca but you can choose your name) You are the closest to him. This is when twin giants come to put nico in the jar.