I agree that Julia has a lot less development than the other main girls, which is why it's hard to care for her that much, particularly since you didn't see any of the moments that the MC experienced with her other than their first meeting and date.
In my original plan, I was supposed to include one chapter in the present for every two spent in the future until the story catches up with it, developing the characters in both timelines and keeping them intriguing. Since I didn't have any experience creating a VN of any kind, the concept looked fine on paper.
However, I soon realized that I had written myself into a corner because it's impossible to spend any lengthy amount of time in the future without having the characters talk about the past or MC thinking about the events that occurred. And how can the characters discuss the past if you as the player didn't get to neither experience it yet, nor did you make the choices that affect it? I could have gotten away with it in a kinetic novel, but not if I want player choice to actually matter.
I tried my best in Chapter 4, which went back to the future/present, but it's already a bit of a mess. While you're not forced to commit to anything and will still be able to shape the story as you want, several vague conversations just feel confusing/irritating. Moreover, it has characters like Fleur/Susan/etc. act interested in you if you were on their paths in Chapter 3, but that's only Chapter 3 - you can end up dumping them by the end of the past timeline and then their reaction to meeting you again will retroactively make zero sense.
Sorry for going on a bit of a rant, but this conundrum that I've created for myself has been frustrating me for over a year now.
