KDAD is, to me, essentially the kind of manga I wanted to read when I was a younger, cynical yet hopelessly romantic girl. The protagonist is the smart, likewise cynical, and perceptive female lead that I've always wanted to read about, as opposed to the clumsy, old school, shy and dense country bumpkin female lead I somehow kept stumbling upon during my searches for some shoujo series. Not only is Kanoko absolutely cunning, she's manipulative and rather harsh and, dare I say, cruel by shoujo standards, if there is such a thing. Despite this, she still manages to snag the heart of middle school and high school heartthrob Tsubaki, who sticks around for her adventures and journeys of fun and excitement. Even Tsubaki was like a male lead I've wanted to read when I was younger: he's sensible and not big-headed, he's not excessively mean or needlessly roundabout or indirect. He's also a very chill dude.
However, those were the tastes I had back then. While they have generally been unchanged, I do realize how much of this could actually lead to a slow and drab story. Though the characters themselves I may like, if the story isn't interesting or fun enough the series will just be average at best.
At this point in the story, I feel that the manga has just settled into itself. Though it started as a "battle of the Three Kingdoms" with a bit of "high school politics" (if you can call it that) being the main focus, it's moved more into the romance territory nearly all shoujo manga contain. I don't think it's ruined the series or anything like that, I DO read shoujo looking for love stories, but I am disappointed that the moments of cynicism and manipulation Kanoko displays frequently in the early parts of the manga are dwindling. Though the prequel was filled to the brim with satire on shoujo conventions, it seems that this series has been slowly falling into those tropes. I honestly wasn't expecting anything less, the premise of the series set itself up for that I believe.
So my "final" say? I think it's definitely worth a read, whether you absolutely adore shoujo, spit on it (I hope you don't), or are ambivalent on the genre. The protagonist pulls you in from the beginning, as does the frantic political maneuverings of these high schoolers, but whether or not you're willing to stay to watch the romance develop is up to you. Though the prequel is episodic, I think it's a good idea to read that first to get a feel for the series but do keep in mind that this main story ends up falling back to shoujo conventions. The story itself is average I'd say, it's only interesting when there's a big cast to jump back and forth between, with Kanoko being the driving force. I am looking forward to future romantic developments, but I hope the cynicism doesn't suffer for it.
As for the art, it's fairly standard. The girls are easy on the eyes, but sometimes the guys' faces and even proportions can be a bit... off? It feels off is what I mean. It's nothing amazing or masterful, but it's not terrible or distracting (99% of the time), so: average.