Ten years have already passed since the last war died down on Earth between people and their eternal enemies - vampires and werewolves, calling themselves Others. People, although with great difficulty, managed to win - and now the Others, half-breeds and their old allies - black magicians - have to undergo mandatory registration with special organizations involved in the investigation of paranormal crimes. Among such organizations, the most widely known is the Special Department against Others, in which most of the friends of Rae Seddon, nicknamed Firefly, a young craftswoman in making sweets and part-time talented witch hiding her Power...Rae always tried to stay away from Others. But now she is kidnapped by the minions of the vampire Beauregard, who claims the title of Master of the city, in order to use her as bait for the current, rightful Master, Kon. Kon gets involved in a battle with the applicant - and is defeated. Rae understands: to get out of this mess, she will have to not only openly use her magical abilities, but also enter into an alliance with Kon...