I really enjoyed what I played, so I don't have a lot of feedback on the story or world itself. What I do have an input about, is that it feels like we don't have enough choices when we interact with the RO's in the game. It only really gives you two options most of the time, one of which is objectively 'wrong/worse', and one that's the 'correct' choice if you want to have any chance of building a meaningful bond with any of them. Add to that, there's been very little room to expand on the personality of our MC, exactly because there's typically only two choices. No choice to be flustered or bold about flirting, it's just limited to whether we blush or not, Aiden being a very good example for that in the start of the prologue. And I know the MC hasn't had their first kiss or anything at the start of the game, but that doesn't mean MC has to be a blushing virgin who gets flustered at even the slightest bit of attention either.
You say there's comprehensive character customization for our MC, including appearances as well as personality in the description of the game, but so far we're two chapters into the game and it doesn't feel like we have much of a say in the personality at all yet, which is fairly disappointing if I'm being honest. If I could give one piece of advice it would be to go back through the chapters you've already released, and to add a lot more choices for the player to pick to both impact relationships but to also define the personality of their MC. It doesn't have to be 6 or 7 choices for each choice or anything like some games do, but if you want this game to feel like it's an interactive piece of fiction then we need more than just 2 choices most of the time. Especially when those two choices are either just bad for the relationships, or plain good instead. When you're limited to only those two options, most people will just pick the 'good' choice at that point, and if everyone is 'forced' to take that one choice for the best outcome then is there even a point to having a choice to begin with?
I don't say this to disparage you, or to hate on the game, because a lot of what I've seen was really good. So that isn't my intention at all, but I do feel like the thoughts I've shared about the game so far would qualify as being constructive criticism.