Paladins and undead, order against chaos, muskets and magic. Three hundred years after Karl Franz raised the warhammer, the Twin-Tailed Comet streaks across the sky once more, heralding a new age of heroes.
In short, in this bizarre world, "he" somehow reincarnates here, somehow endures decades of hellish training to become the vampire princess Sylph von Karstein, and somehow is eventually allowed to leave the gloomy old castle and explore the human world.
Well, the point of exploring is to have fun. Causing a little revolution, building a few factories, and stirring up some trouble along the way is perfectly normal, right? Slaying a Leviathan, taking on the forces of Chaos, and saving the world are easy enough too, right?
From the moment she reincarnates, Sylph is always dreaming of her bright future. There is only one thing she never expected.
"Hey, who are you? What are you doing in my bed?"
Anyway, about twenty years later...
"So, is that a crime? What some people see as evil, others see as good! I've always been aboveboard!"
"But, darling, you were the one who asked me to hear your confession back then, and you even said..."
"Shut up, especially you, you idiot! Don't even think about it. Go kneel on the washboard!"