Demon and the Witch

An angel falls with the information to discover the relics from heaven. There is a manhunt from both heaven and hell to find the angel (who is currently MIA) especially from a certain demon who may have a HUGE CRUSH on the angel (but he's totally doing it because of the orders right) and demon learns about a wizard that is like the king of finding people and goes on a hunt for him. After coercing him (threatening him) they go on a hunt for the angel and have to A.) Not get caught by the demons or angels since Demon is sort of MIA for a while and can't get caught doing things that pertain to looking for the angel or he'll get in trouble B.) Not get caught by angels because duh demon C.) Find the Angel