Actually, I'd more suspect the Dragon directly, though I do expect her to be troublesome if that is the case.
Also, the dream has concerned me and led to a curious theory.
>The dream we had earlier - do we know where in the Ancient City we were? Did we catch a glimpse of 'our' palace, or any other long-lasting fixtures?
>How much of the distant past have we heard from drunken oni at the tavern? Bad old times, major events, etc? Maybe the cause of the riot that ruined part of the city?
>What's the reason behind our beef with the hakutaku's submission to the Emperor?
>Thinking on the dream, you don't think you were in any real place in the Ancient City, but rather some place that you recognized as such. Maybe it was the marketplace?
>You've heard a lot of tales about those kinds of things, not all of them in agreement with each other. You think the riot that lead to that fire was over two rival distilleries, back when Suika was still part of the city hierarchy and controlled that part of things. Things went bad, lanterns got knocked into flammable liquor, and it quickly spread.
>Really, it's a beef with the Yamato themselves: for winning the Suwa war, subjugating the native powers, asserting their own dominance; as well as the political shifts that came with the unification of Japan into one nation under the empire and the rise of humanity in its wake. In particular, it affected a fair amount of your upbringing. The Mikado served as a potent symbol of that, and you took it upon yourself to give them a hard time when you could, just to let them know that they weren't as firmly in control as they hoped.
>_