Elena is sold by her foster mother to a vampire family as a "blood bag," all to cover her little brother's bone cancer treatment. Julian, the cursed vampire heir, can only ease his painful affliction with her rare sweet golden blood. Misunderstandings and pain arise, yet true affection grows beyond their cold bargain. A ruthless rival plots to expose Julian's vampire identity and pushes them into deadly danger. As their contract turns into real love, can they break the curse and survive all schemes together?
