Bloodfiends (혈귀, Hyeolgwi) are a unique, blood-dependent species of distortions with a history that goes back for decades.
Although formerly an obscured distortions as a result of in-group policing, Bloodfiends have become a more well-known fixers following the Dark-red Night's public ascension to Urban Plague shortly before the events of Lobotomy Corperation. In modern day, the average citizen is not familiar with the idea of Bloodfiends and there is even Fixers who specialize in the cooperation with Bloodfiend fixers to solve incidents.
They are directly inspired by vampires in modern literature, and much of their existence revolves around blood.