Hero Exa is bound to slay the demon queen Sheila to end the endless war between humans and demons in this direct sequel to Superior. Sheila secretly joins his journey, hiding her identity as she falls for the man sworn to kill her, while Exa starts questioning whether the demons he's been trained to see as monsters actually think and feel the way people do. Their uneasy alliance forces both of them toward a fight neither is sure they want to finish.