And if someday I realize this code has problems, or it's not suitable anymore. I would do it again, and again, and again.

I want to have a polished and good final product.
It's a very reasonable and respectable way of developing a game. I wholeheartedly support that.
At first I wanted to give some detailed feedback concerning the game economy (earning money, jobs, etc.), but clearly this part of the game is not finished yet, so I'll refrain. Just a small pointer - guild tasks should earn a bit more money, it'd be better if upgrades were permanent but more expensive (better fishing rod, beter bobbers and lures, better pickaxe). The need to constantly reinvest money into your grinding tools feels unsatisfying in this type of game.
One of the things I could suggest as of now is maybe redesigning and remodelling the hero. The girls are well thought out and cute, but our hero looks kind of scuffed and sometimes breaks the immersion. Especially during the prologue my reaction was "What the hell happened to his head? Did they feed him with a slingshot since infancy?" Later on he somehow looks a bit better, but still not as good as he could look.
Another is adding affection bonuses when you are spending time with one girl multiple times in a single day, to ease up the grind. Looping the same "spend time with" multiple times a few days in a row is, let's be frank, kind of boring and tedious once you're done with everything else and you just need to lvlup the girls. Even +1 bonus affection if you're revisiting a girl would be nice. Another way to ease the grind would be to add more combo scenes/actions to the game, during which multiple girls get +affection, like in case of Rebecca teaching Evie. Revisiting sex scenes with girls could also become available and grant bonus Affection - it would be a nice breath of fresh air like in case of Fara's weekly morning visits.
Fourth one is the same as with my post before - gallery/recaps for all nudity in game, not just the sex scenes + a notification "scene unlocked".
Fifth- adding usable items shortcuts in form of icons to the right or key shortcuts would be very nice.
Sixth- Ability to ask girls the locations of other girs (if they like eachother) just like in case of the sister of the protagonist - it'd be very neat Sometimes girls just disappear and they're nowhere to be seen at all. A tip where she tends to be or an info she went out of town (etc) would help a lot.
Seventh- Once you've met the girl at a certain time&day during the week, it would be nice if the game were to note that somewhere in a journal or in the girl's bio or something, so the player doesn't have to remember it all.
Eigth - the guild navigation UI isn't very ergonomical. It requires a lot of clicks. Allowing players to expand upwards the window with rooms so that all would be seen at once, and also giving a nametag to each room near its image could be a nice addition.
There are some other minor things but let's not drag this out.
All in all this is a great game, adult games tend to bore me a lot but this one really immersed me. The writing is really fun to read, the girls are well designed, the world lore and design seems to be perfectly deep (not too much reading, but still interesting and with some twists) for a sex game which is awesome. The game itself isn't difficult or annoying, there is no NTR (Yes, I AM kink shaming), you can unlock everything if you just spend a bit of time on it, there are no errors to be made or there are no requirements of replaying the game multiple times to experience all of the content. This is a very pleasant, chill game.
HHG is one of my favorite H-games.
I can't wait for the next update.
Huge Kudos to you, Komisari.