Alright, this game was a surprise for me.
STORY - 5/5
The story is pretty much "generic" in the means of the overall idea, but the details make it so much interesting! It's a nice catch that the justification for the "in-breeding" is the fact that you come from a Royal family, which is something historically accurate. I am hoping to see some development regarding this side of the story, the more investigative one, since the MC doesn't seem to know much about his father's family, but now he has the perfect opportunity to do so!
The fact that the girls might get jealous on each other SHOULD become a mechanic to make the game slightly more difficult. You know, it doesn't need to become a route, like we see in many Eroges, but something like, if you mess up with romance interest Y, you gotta make it up to her one way or another, or it opens different patches of chats, so on. I know it's all too much for now, since the game is still giving its first steps, but it's definitely worth the try!
I didn't notice any major bug or story flaw to point out. To begin with, I do understand that this game is more "family-focused", but I would like to advice for opening opportunity for other girls to come up as well. Just like we have the bakery girl, that is also a MC love interest because of the story they share together, it should also be fun to add a School, University or maybe Job characters that might also be romance interest. Let's not forget that as much as the MC doesn't need to work, he may still want to do somethings with his life to not raise too many suspicious. Especially regarding his potential "non-family" girlfriends.
Overall, for the time being I had a really great time playing this game, the story is great and it has a lot of potential to become something even better. I hope the developers can read this post of mine and find motivation to keep on - from someone who is already a fan of your work.
ART - 5/5
At the start, when I was still downloading the game and checking it on F95, I didn't give much credit to the art. Not that it was bad, but it was feeling too simple, not as polished as it could be. Oh boy, I was wrong.
Don't get me wrong, the art and the sex scenes can always be improved, but the proportions of the girls are natural and you can clearly picture them as real (which, for me, is a MUST in these games). The mother looks breathtaking, the curves are real, she doesn't have these massive unnatural japanese looking boobs, it's just a mature woman with a breathtaking body. It's something nice. These are the everyday girls you see on the streets. The hot woman in her 40s, with nice curves, wide hips, nice round ass and juicy titties who doesn't know how hot she is. The tanned bratty sister that also looks great. The "countryside" cousin who is shy and provocative. The tanned aunt that dresses as a serious businesswoman, but has the mind of a femme fatale. All these things merge from the way they were designed, and it's simply fantastic.
Overall, great art too!