Just like most people, Sion Ribellon doesn't want to go to work. But it's not that he's lazy, he just doesn't want his boss to murder him! Before Sion woke up as a character in this world, he read a novel that detailed his death, and his killer is none other than Serifenz A. Pracidus, the Duke of the Holy Lumen Empire and Sion's new boss. Now, Sion has to befriend Serifenz and find out why he eventually turns evil, not only to save his own skin but also to prevent the apocalyptic ending!