Mr. Secretary of the Underworld Guardian. When Pangu created the world, the first evil spirit in the world transformed into a demon. The originator of evil has become a demon.
The heroine is the 72nd generation descendant of a family of exorcists.
Humans and demons take different paths, contrary to God's will.
Whether it is becoming a god or a demon, it is actually a punishment.
Eternal life is not a curse.