Once upon a time the Blood Sorcerer vanquished the kingdom of Elden. To save their children, the queen scattered them to safety and the king filled them with vengeance. Only a magical timepiece connects the four royal heirs and time is running out. Nicolai the Vampire was renowned for his virility, but in a twist of fate, "the Dark Seducer" had become a sex slave in the kingdom of Delfina; stripped of his precious timepiece and his memory but exploiting her meant dooming the only mortal he craved.