I wanted to make this comment after finishing chapter 1, but I held on until finishing chapter 2 (is chapter 3 complete? Figured I'd take the chance to ask.)
Suzu is the gem of this game; she alone makes it worth playing, and elevates it to a straight 5/5. I don't think I've seen any other AVN do that "I brought a JK home" experience, and so well too. How she's written, the clothing and hairstyle choices, the subtlety it's all delivered with, the focus she gets, you should feel proud of yourself for her charatcer. I will sing the praises of CH forever due to her. If I get to pick a heroine for a solo ending I'm not hesitating, Suzu and MC will go to that shack in the woods!
Second most valuable heroine is likely Yukari. Now, I wouldn't say I like her, but I find it valuable that, having the chance to use her any one way, you choose to use her to show the consequences of narrowmindness and maybe attempt to be a positive force in putting a stop to them. Props there.
I was honestly relieved when I saw Aki's backstory, when I saw where things were heading I was afraid you were going to pull your punches, and I'm so glad you did not. The Anzou clan "particularity" is super interesting (I wonder what this means for Sae, with her being into masochism...)
Honestly the first thing I disliked about the game was being forced to fool around with Mana, only getting a choice on wheter to go further, rather than on if to start at all. Not a huge fan, but when you had that line of "I guess she likes to discover hidden things due to her family", you showed you have a solid grasp on who she is as a character, well done.
Ookami's slowburn is super well done, I want to see more of Machi, and I enjoy every time Chiya is on screen (big tip!) Aya is cute too, and I tend to hate that type of super forward character, so feel proud, you presented her well!
Please, don't ever give me a choice on wheter to shoot Jun in the head, because I'd blow her brains out so fast. (If that choice does appear, the game becomes an instant 10/5)
The amount of secondary characters makes me wonder if you have a plan for each of them or if you've forgotten some already, but they defitinely make the world feel lived in, so if that's what you were going for, you achieved it!
In sum, feel proud! You've crafted a great experience!