Compared to the vast empire of humanity, vampires are merely a large family at best. However, small as they may be, they possess a complete and intricate system. Within this unique family, there are clear structures and hierarchies. The family is divided into two main factions: the Secret Faction and the Demon Faction. The Secret Faction, due to its principle of seclusion, is not the most terrifying for humans. After all, encountering one of their reclusive members is as rare as being struck by lightning—it's not something that happens easily. The Demon Faction, however, is a different story. To them, humans are nothing more than food laid out on a table, to be devoured or slaughtered at will. They have never bothered to cherish their meals, for in their eyes, humans are a species with an astonishing ability to reproduce. Fortunately, the Demon Faction is not as numerous as the Secret Faction, and most of them live deep in the mountains and forests, rarely venturing into densely populated human areas. As a result, they don't draw too much attention from humankind. After all, humans only tend to react to immediate threats to their survival, not to the distant whispers of legends. Thus, the human empire and this vampire family coexist on this vast Earth in a state of relative peace. The two factions within the family also remain in balance, with neither overwhelming the other. All in all, the scales remain even.