To save her family from the brink of bloodline extinction, Alice—a noblewoman of the vampire clan—conceals her identity and enters into a blood pact with Kane, the werewolf crown prince, becoming his "blood slave" in exchange for vital resources. Simultaneously, she strikes a secret deal with the ruthless vampire Prince Lucien to gather intelligence against her family's sworn enemies. Caught between these conflicting pacts and the possessiveness of two powerful men, she maneuvers to survive—until her own ancient bloodline awakens, completely overturning the situation.
