Kill Lucifer's Daughter

The world is silently being attacked by demons and hiding it behind the 'ozone' curtain to avoid panic.

They have come up with academies that train certain citizens how to track, capture and kill these demons. After all, it is their fault, they opened a pathway for these murderous creatures.

What they don't know is that, one of their trainees is the reason these demons are on earth, searching for her...to drag her back to hell.
For if the runaway demon, Habos(Ivy) does not return, heaven will have to intervene and destroy her. She is an abomination, the daughter of Lucifer. He mated a human, which is against all divine rules.

But hell seems to have lost it's grip on Ivy, and heaven has already assigned one of their own to end her... Angel Samael, the Venom of God.