Wait, but that's kinda fascinating! For some reason I haven't ever seen these subgenres cross before, your typical transmigration rofan and exorcising creepy spirits...
And for some reason, the male lead is intriguing, too. I mean, give me literally ANYTHING but the cold Duke of the North, and I'll gobble it up gladly; but I'm genuinely interested in this guy's situation. A beautiful start for this manga, count me in!