There was a place called 'heaven' before earth was made. During your time there you manifested as a Seraphim alongside another one named Sera. After a while, she fell for you and you became lovers, until you were banished to hell for faked accusations. With that banishment, you were wiped from the Book Of History. Unlike Lucifer, you were just a myth in heaven; Sera had covered your history.

One day you somehow managed to come back. Now you're standing in front of Sera, who seemed shocked.