The possibility of an oncoming war.

[The historical war...!! Shockingly, there's a lot of Actual History going on in between all the samurai vampires and demons.]

I suppose that does make sense, though. [In a convoluted weird way??] It's just the concept itself that's a bit bizarre. We don't have anything like that in my world...

[Even though Kaoru is a demon, it's not like they're supernatural demons... It's Complicated.]