Hydra is ran and operated by Demons. Shield however is ran by Angels save for Fury, he's just an all around badass. The reader is the daughter of John and Mary Winchester, she was born a year before Sam and on that fateful night when Mary dies Azazel kidnaps The baby and takes her to Pierce. Pierce sends her to the red room where she becomes like Natasha. a deadly assassin. she grows up not knowing who she is until one day JOhn winchester finds her and tells her the truth making her question everything HYDRA is about. there is more but if i tell you all now then it wouldn't be much of a surprise would it.