It's 1958, Sunoo, a gifted human jazz singer, is offered an opportunity to perform at a well-known jazz bar in Seoul, Polaris. Unbeknownst to him, Polaris is a hidden sanctuary for vampires, and the moment he steps onto its dimly lit stage, he catches the eyes of six brothers-vampires who have long called the bar home. Their attraction to Sunoo is immediate, their desire unmistakable. Desperate to claim him, they begin to weave their dangerous web around him.
Sunoo is invited by the bar owner, Bang Si-hyuk, to become a regular performer. As everything in this world, also this offer comes with a price-one that binds Sunoo to the dark, seductive world of the vampires. Trapped between lust, power, and a thirst for blood, Sunoo must decide how far he is willing to go to escape, or if he'll fall deeper into their grasp.
or:
Sunoo, a jazz singer in 1958, is invited to perform at Polaris, which also serves as a haven for vampires, including the Enhypen brothers. They become obsessed with Sunoo at first sight, each one of them determined to claim him.