While I don't have a problem with the story per se with regards to the blood princess almost never showing up, I will say this:
If I had bought this manhua as a vampire girl fan and I was mostly stuck with this blonde Kirito being bigoted towards vampires for the large majority of the first volume... well, I'd be seriously pissed. I don't think calling it a bait and switch is entirely unfair in that context. I also really don't find "it gets better" to be a valid defense of any work. A refrain, maybe, but it's asking the audience to go more than meeting it halfway which is not reasonable an ask in a world with no shortage of media to enjoy.
All that said I am enjoying this. Half because I do want to see that blonde Kirito humbled and forced to eat his (admittedly understandable) prejudice. I'm kind of hoping, also, that the other side isn't entirely a different person like the earlier chapter teased but him compartmentalizing his own psyche. I just wish this manhua thus far had more meat than filler.