Love the game! I've been playing for 12ish hours so far, exploring and testing different things out. I can see how much effort you put into it and I am really impressed! I can't wait to follow along and see how it develops.
If I had any feedback, it'd maybe be limiting the number of generated characters? Unless there's an option I missed. You rarely see any of the same characters outside of classmates and your dormmates. As for the ones you see outside, like at the bar or arcade, there doesn't seem to be a way to call on those characters aside from randomly seeing them again. You also automatically acquire the number of people you befriend which can really clog up your phone. On one saved file, I think I had 5 pages of "friends"? Limiting who gets your number might be a good idea too. I really can't tell but it almost feels like the game is constantly making new characters which would lower the chances of meeting previous characters you have rapport with. Unless, again, the number of generated characters is just that high.
I know the game is still young, but it's kind of crazy how far and how few story/character events are, given how much time we have in a given day. After a month or two in-game, I couldn't tell if there was anything left to do, or if progressing was just spaced out THAT much. I know you're working on adding more content, but it's just something that becomes quite noticeable with the current version.
I'm still messing around with the dating system, but it becomes harder(?) to do anything sexual after becoming romantic with a character? Maybe I'm just doing something wrong or picking the wrong options, haha.