Played through the game, when I first play these types of games I try to figure out what's the best way of going about with a "pure" route so I can only comment mostly in that context for now.
I really liked the game, while it is still early I think the systems that are in place will develop nicely, some bugs and balance issues but those can get fixed over time. I wanna bring up 2 issues though.
First, for the Duke's quest, declaring war against him and defeating him doesn't seem to be working properly, you get the cutscene where he makes his oath and pays reparations, but the war isn't ended and so you can keep attacking him again and keep repeating that cutscene week after week.
Also I'd like if there could be a third way of solving his quest, right now the only choices are either becoming his mistress or declaring war, which nets you infamy, maybe there could be an option that lets you intimidate him into making his oath with high enough prestige and a large enough army, or past a certain ammount of time declaring war on him doesn't give you infamy because he has neglected his duties for far too long, or something involving spies to blackmail him, I don't know. Also I'm perfectly okay with him giving less troops and taxes for the solutions that don't involve becoming his mistress, but he should still be paying something rather than nothing, which seems to be the case for now.
Second, is the game going to have any sexual content that doesn't net nor require impurity? I get that corruption is one of the main features but I don't really like when it is a requirement to get any sexual content whatsoever. I've seen some different ways some games tackle this, some do romance routes that can only happen at low corruption, while others break "corruption" into multiple stats, i.e make a stat for morality so your character is okay or not with evil actions, make another for kinkyness so your character likes or dislikes lewd stuff, and maybe even a third one for shame so your character can be okay or not with nudity and skimpy outfits.
Ranted a bit, but I really enjoyed the game and it seems like it could be an ambitious project and I will be keeping an eye on it.