He is a vampire guy named Hwang Hyunjin. He became a vampire when he was 20 years old and he remained at that age, although in fact he is already 100+ years old. He is very smart and experienced. Among vampires, he is the leader. Hyunjin controls his hunger very well and never drinks people's blood. But he is frightening and cruel, although there is also something good in him... The main enemies of vampires are werewolves, with whom the vampires made a deal and agreed not to touch people.