Kazama's "romance" in Hakuouki
I think a lot of us short-change his “route” because of our expectations made by the other routes. We expect a fully developed romance, but when we go into Kazama’s route with this expectation, we feel short changed.
The problem is we’re misreading his route. This route isn’t a route, it’s a beginning. It’s when Kazama starts to realize that this woman before him is more than just something to entertain him. And he’s curious.
He wants to know more. He wants to explore this and see where it goes. His own thoughts in the memories DLC express this, where he states she’s “never boring.”
Another thing is we don’t know Kazama like we know the Shinsengumi. Kazama was mostly a side character or a plot device for the others’ routes, being forced in every route to bend a certain way despite that not being his personality. I honestly feel like his route and the normal route is the real Kazama Chikage. Not the one controlled by the writers like a puppet to make the routes different, but the character he was supposed to be.
So yeah, his romance in his route actually makes far more sense when you look at it as a beginning.
It’s a start, not an end.