In every generation, there is the Slayer. One girl - or in this case, boy - in all the world with the strength and skill to hunt vampires, demons, and the forces of darkness. Heechul doesn't care; he wants a normal life. His new Watcher, Siwon, won't leave him alone; his roommate, Donghae, is getting suspicious; and that really hot Chinese guy he keeps seeing lurking around won't stop being cryptic. Sacred duties aren't all they're cracked up to be.