60 years ago, a strange case of insomnia struck the population, forcing them to stay awake for more than a full week. The victims, completely sleep deprived, all went mad. To cure this illness, a new medicine was produced, but the side effects turned the patients into vampires. Humanity went to war against this new species and triumphed, but some of the vampires managed to survive. Born from a Human and a Vampire, the main character Mi Liu, "The Child of Hope," is to represent the new hope that will connect the two species. Ringleader of a bank robbery, Mi Liu is arrested and transferred to a special prison of the National Defense Agency that monitors Vampires. Trying to break free with Anji, Mi Liu is attacked by strange monsters and he finds out that the prison location corresponds to the birthplace of Vampires, the old capital "Blue Town." Why are Vampires trapped in Blue Town? What are those strange monsters attacking them? Our heroes must fight to solve those mysteries. (Source: Emon via ANN)

Dreaming of becoming a hero and vanquishing the Demon King, Raul Chaser enters the Hero Training Program in pursuit of his ambition. However, when the Demon King is defeated and peace returns to the world, the Hero Training Program is suspended indefinitely, making it impossible for anyone to become a hero. Two years later, Raul reluctantly works at a small electronics store called Magic Shop Leon. Though the former hero-in-training is plagued by the mundanity of working in retail, everything changes with the arrival of a new hire. Appearing at first to be just a boy with good looks, "he" turns out to be a female demon by the name of Fino Bloodstone. She is not just any old demon either—Raul's new coworker is in fact the daughter of the late Demon King! Handed the responsibility of training this eccentric new employee, Raul soon finds his life becoming livelier than it ever was before. [Written by MAL Rewrite]

There are 12 companion pieces in the forms of "Fact Files" (which expand upon a given character from a corresponding episode) airing shortly after each episode.

Jack Knife Edge Town is as edgy as it sounds, and it's up to Inferno Cop to stop that edge from tearing his city apart. He's both law and outlaw, dispensing ungodly justice to evildoers like a candy machine. Lowlifes, gangsters, and even hellspawn all infest Inferno Cop's hunting ground, but that's the good news. The bad news? Prior to the story, his family was brutally murdered by Southern Cross, a shady organization that made the worst mistake imaginable by doing so. Now, Inferno Cop's limiters have been removed and his mercy rung more dry than the entrails of his victims. Something is welling up in Inferno Cop's city, however, and soon he'll face the most daunting gauntlet of his life involving him literally falling into and escaping from Hell. A flaming head won't be enough to ward off the true evil that's rapidly approaching—Inferno Cop must call upon all his allies and his own wacky antics to conquer the trials that await him. [Written by MAL Rewrite]