Sera, an illegitimate human princess, is offered by her own father as a sacrificial tribute to Kael, the Beast King of the orcs. Concealing a dagger, she plots her revenge—only to inadvertently awaken her true heritage: the royal blood of the vampires. It is revealed that her father, in collusion with the Holy See and the elders of the Bear Clan, had intended to use her as a sacrificial vessel. From bitter enemies, Sera and Kael forge a bond that transcends life and death; together, they dismantle the Holy See’s sinister "holy war" conspiracy, eliminate every traitor, abolish the system of racial enslavement, and establish a new, egalitarian alliance for all races within the Great Rift.
