After a life threatening encounter with a monster called a Kestral, Krystal is approached by a strange man with an offer: become a demon. The catch is that she must join the Ivory Guard, a force of demons who's sole mission is to protect human souls from Kestrals. Easy? Definitely not. And it's even harder with drama and cute guys galore. Will Krystal ever become the hero she's dreamed of being?