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In a world where vampires are considered superior and lycans are considered inferior, Seojoon is a half-lycan considered an outsider to both lycans and humans alike. Still, he’s determined to keep his head up as a firefighter in a society that doesn’t recognize his efforts. As a vampire, Ray doesn’t understand that pride, but he is nevertheless determined to take Seojoon overseas. But the two of them have already splintered apart before, and Seojoon isn’t ready to take a leap of faith just yet. As society and Ray both pressure him into a corner, Seojoon finds himself stumbling into the dark of the night, where he just might find his damnation…or salvation.
In a world where vampires exist, a special undercover agency keeps the rest of society safe by hunting them down. Agent “First” Shin is the best of the best. The only problem is he keeps losing partners, so he’s decided to stick to working solo. However, his manager has other plans, and a recruit is assigned to him. The new guy just won’t leave him alone, yet annoyed as he is, First also can’t ignore his model-like new partner. Is it his potential as a partner... or something else?