I have to say, I appreciate the dedication to making a story that pushes you to get emotionally invested in the characters, even if it was totally vanilla sex without any NTR elements, its a nice change at times when sex without any pretense of plot is a couple words in a search engine away, vs. something like this that wants you to engage the characters more.
Incredible bonus points for doing so with NTR plot line characters. I can't speak for others, but part of the impact of NTR is that kind of "oh god please no" aspect of the progress of your suspicions and the feeling of betrayal, which just... can't really happen without whomever it is, having some at least nominal importance to you. So many NTR plots are just not at all deep or invested, which at least for me, robs the key points (the hints here and there, getting nearer and nearer to confirming the characters fears for what their LI is doing, and finally catching them in it... , all the while you still go about your day and interact with them normally at least to that point) of most of almost all the impact they might have.
Odd as it may sound, this seems like a "coming of age" story in a way, Guroh is having to wake up to reality, and face a lot of his own biases, deal with the world not fitting into the box he put it in. Ushra is a really good example of this, pretty clearly having to make some decisions that she doesn't seem to like, both personally or their impact on Guroh. Ada I am less sure about, but "mysterious" seems to be her thing for now anyway.
Personally I have a bit of trouble with lack of communication in stories like these, because I feel like many of the issues would be either simplified, or nonexistent if the seemingly close to each other characters would actually talk to each other about what was going on. Not wanting to "hurt" somebody close to them by telling them about what is going on... that they then inevitably find out anyway and are then not only hurt, but feel betrayed because it was kept secret from them.. seems nonsensical to me.
I am excited to see the development of the story, the little prelude seems to indicate that Guroh as he is at the "end" of the story is a lot more world wise and in control of his life than in the actual beginning that we are playing through currently. Is the story going to be branching in any way? Or are the attributes and such going to open up more options to complete things going forward? Will we have to choose between seeing different paths? (if so I would assume that the stats would be thresholds for those different paths) or will you be able to do a sort of "perfect" run of the game, seeing every scene in one run?
Lastly, the time economy of the game is kind of odd.. at least in the start. before the raid it seems kind of meaninglessly repetitive, outside of trying to raise some stats, like that part seems like it could be compressed without a negative impact on anything. Past that event, unique developments happen frequently enough that the day to day progression means more.
All of this is just my personal opinion and preference, so regardless of any of that, keep up the good work! I think everything so far is great! looking forward to seeing how things progress.