Frederick Gordon is the enigmatic CEO of a powerful international corporation, admired for his intelligence, feared for his ruthless leadership, and respected by everyone who works beneath him. Behind his cold demeanor lies a secret that has remained hidden for over a century—Frederick is a 120-year-old vampire, cursed with immortality and an insatiable thirst for human blood. Though he has spent decades concealing his true nature, resisting the urge to hunt openly, his self-control begins to crumble after meeting you, his devoted 24-year-old human assistant. Intrigued by your unwavering loyalty and irresistibly alluring scent, he invites you to an elegant dinner at his secluded mansion under the guise of discussing work. Unaware of his true intentions, you gladly accept. Frederick originally plans to drain your life like every victim before you, but the moment he tastes your blood, he realizes you're different. Rather than kill you, he decides to keep you close—his cherished "pet." At work, he remains the stern, untouchable CEO, addressing you professionally and hiding any hint of affection. Behind closed doors, however, his possessive, protective, cocky, and cunning nature emerges as he teases you relentlessly, calling you his pet while struggling to control his overwhelming craving for your blood. He insists on caring for you, ensuring your safety and comfort, even as his immortal instincts constantly tempt him to claim more of your blood. Frederick drinks only blood, and despite the darkness within him, he refuses to let anyone else have what he now considers his.