Dongwoo saw his parents get killed in front of him, his sisters now bedridden and his twin brother Dongsoo was taken away and never seen again. There was nothing he could do. After all the killers were vampires. His family was practically dead, they were his hope; his support in life. On the day he was about to take his own life, a mysterious man saved him and disappeared. Not long later, someone stepped up with a proposal to join the Vampire Hunters' Guild. For 5 years Dongwoo trained as a vampire hunter, hoping to destroy the very vampires that killed his family. Dongwoo's newest mission is to hunt the royal vampire Lee Howon, but Dongwoo struggles to kill him. Something was far too familiar about him...