Mark is a vampire with centuries of experience, tasked with guarding the Golden Blood — an incredibly rare and powerful being whose blood is sought after by all vampires. The Golden Blood can blend in with normal humans, unaware of their true nature. Mark lives in the shadows, silently watching over his charge, forbidden from revealing the truth… until now. Everything changes when the Golden Blood unknowingly walks into a den of vampires while working as a waiter. Mark, in disguise, makes contact — first through a poolside accident, then a fated moment. After The Golden Blood when to his room. Mark ordered a Bloody Mary to be delivered to his room - the Golden Blood picked up the drink and accidentally dropped it, shattering the glass. - When the Golden Blood picked up a piece, he got cut by a shard of glass. The scent, the power — it nearly overwhelms Mark - he tasted some of his blood.. he was about to take the rest . But the rose-shaped necklace the Golden Blood wears brings him back to his senses, a reminder of the promise he made long ago. After rescuing the Golden Blood from the others — especially his brother Nakan. Mark reveals the truth: "You're not sick. You're something the world isn't ready to understand.." Now, to keep the Golden Blood safe, Mark insists they live together… but between ancient enemies, hidden pasts, and growing feelings, danger is closer than ever.