Rough, but I especially liked the story, so sticking around.
But to start with, congratulation on 1st release Grumpy, well done.
Also kudos for releasing a very lengthy first chapter, it actually surprised me how long it went.
Other than renders sometimes being bit on low side (not complaint, just observation), I'd say game might need bit of proof-reading.
I'm not someone who complains about spelling and stuff in VNs (doesn't bother me one bit), but game, especially early on, has quite a lot of grammatical error, missing punctuations etc. It's very rough.
To clarify, not talking about ta', da' etc., I get that's for actual "peasant" talk.
Girls being willing to jump on brothers dick is a bit...
Look, I'm fine. I play NTR games, doesn't bother me one bit if girls are active on the side.
Yet at the same time, a girl telling me "sure, I'd love to also fuck your brother" means instant "No thank you" for making path for her. She wants brother? Sure thing, I am a-OK at game even referencing a girl is with brother if MC is not chasing her, but she sure as heck won't be part of "my harem" (should one exist, game does have harem tag so far).
Charlotte and Jacinta are my favorites so far.
Also, isn't Yenna 15-16?
We start 1403, end in 1419. Probably not correct years, but something like that.
So unless there's a major time skip, hope it does stay completely platonic between her and MC.
Story I definitely liked. Nice bit of mystery of who/what, political intrigue, "accidental" death of nobility etc.
Side note: Never trust an assassin. But let's see what all the hubbub is with their actions.