As the vampire race faces extinction with the weakening of the Evernight Core, Duke Alexander Alcadia searches the human world for the legendary child with the “Lucky Blood.” He discovers Lily, a cheerful little girl with a mysterious ability to sense danger, and brings her and her mother, Elvira, to his manor. As Lily gradually warms the hearts of the cold vampire family, Alexander uncovers a shocking truth: Lily is his own daughter, born from a love he lost to amnesia. When the ambitious Victor kidnaps Lily to seize the Core, her true power of life, love, and connection finally awakens.