In a world ruled by shadows and ancient bloodlines, Y/n, a fragile human, becomes the target of the Vampire King's wrath. Her only crime? Catching the eye and perhaps the heart of his son. Jeon Jungkook, the cold and powerful crown prince of the vampire realm, was never meant to fall. But when Y/n's life is threatened by his father's command, he does the unthinkable: he defies the throne to protect her. Now on the run, torn between duty and desire, Jungkook and Y/n must navigate a world that wants them dead. Trust is dangerous. Love is deadly. And the line between survival and surrender is starting to blur. Because once the night begins... it never truly ends.