For centuries angels have been painted as the purists beings. Humans believe that they do no wrong. Whilse on the other side of the coin, demons are painted as ultimate sins only living to drag mortals to sin. The angels seek to erradicate these creatures, going as far to sacrifice anything to maintain their status as the ultimate good in the universe. They seek to sacrifice Seraphina, who is ignorantly willing for the greater good. A demon named Apollyon shows Seraphina what sin really means, leaving her to decide what is right and what is wrong.