jonathan & clary morgenstern ➰ you should be scared of us [AU]

AU: Jonathan and Clary once lived together as a family, but then Jonathan was send to hell by their parents becuase of his demon side. His memories were wiped out but at some point Lilith decides to tell him about his past. He finds out a way to reach out to Clary and then he realises he can escape. Jonathan kills Lilith, connects to his sister so they start a ritual that helps him come back but also uses a lot of Clary's powers. She was relocated becuae of this, but Jonathan finds her so he gets her home w