Until We Meet Again (SS&LM-TeenWolf/Supernatural)

'Death leaves a heartache no one can heal, Love leaves a memory no one can steal'

Stiles dies in a car accident and the pack is broken, what happens when a year later stiles suddenly comes back but not as human... but as an angel.. He remembers everyone and everything, when he came back he was with an angel by the name of castiel who explained to him how he's an angel and teaches him everything he needs to know, he then meets Sam and dean winchester, hunters, he feels the need to hate them but they remind him of Scott and himself. What happens when stiles goes back to beacon hills and goes to the pack house, Derek's loft, and everyone's sees that he's very much alive, will he tell the true or lie?