Lee Hanna was growing up training as a hunter. Not a normal hunter. Since she was a small child, she heard the stories from her grandparents that raised her, about the supernatural world; Werewolves, witches, vampires and more creatures. She hated all the supernatural creatures, especially the vampires, as she heard that they killed her parents. What will happen when Hanna will meet a 150 years old vampire, Kim Jonghyun and his friends, who she had a connection with them all but she didn't remember it?