There's a lot to like about this game. The models, for being Koikatsu, are distinctive and attractive, with one small exception (I think that Iris and Chloe need different makeup or something. They wear wildly different clothing, but a bit more distinctiveness would be appreciated for headshots). The story is very interesting and I can't wait to see where it goes from here, with the author clearly being creative.
The one thing that bothers me is that all of the characters speak with the same voice. I think I've read three different characters saying "Now off you fuck", which, while a clever inversion, is not something that you hear regularly. Mixing in regular uses of "piss off" "fuck off" "buzz off" and even just plain "Go away, you're bothering me" would benefit the script significantly. Similarly, I think I've read 5 or 6 different characters using the phrase "would have lost a few teeth that day", which, again, is a fairly specific phrase. And, clearly, there are dozens of idiomatic phrases that can be used for "to beat up", including just the plain version (which probably makes for a better default, like in the previous example). Since the author has patreon and discord, that might be an interesting option to crowdsource, to allow each character to develop his or her own voice more thoroughly.