Freya, the eldest daughter and rightful heir of the Winterbourne family, is betrayed by her fiancé Julian and her younger sister Sigrid on her wedding day, dying tragically on the night of the Blood Moon. Reborn with full knowledge of the future, Freya loses her inheritance rights but uses her spatial powers to stockpile supplies and build an impregnable fortress. Along the way, she rescues the vampire Silas and forms an alliance with him. When the Blood Moon rises, the world is plunged into eternal night. Manipulated by the traitorous witch Morrigan, the Blackwood family seeks to destroy and absorb the other three great families. Freya joins forces with the vampires, Fenrir—the Silver Moon Wolf King—and the surviving members of the Grimm family to fight against an overwhelming army of undead and vampires. In the decisive battle, Fenrir leads his wolf clan in a devastating self-sacrifice, opening a path to survival for the others. In the end, Freya fuses the powers of flame, life, and vampire blood to summon the “Crimson Griffin,” defeating Morrigan once and for all. With the war finally over, Freya is crowned queen, becoming the guardian of peace among all races.