human or human like creatures already exist throughout the universe. humans were created here by them 200k years ago. because terraforming is difficult they seek out planets with life and merge their dna with the suitable organisms. because of the long distances and difficulty of travel, these aliens prefer to let the planets run idependently as much as possible, but will occasionally interfer with human affairs when necessary. they are what humans thought of as angels. a group of angels are appointed as vassals of earth, who in turn appoint a group of humans to do their bidding on earth