I found a bug
Because of my subpar awesome programming skills, there is a bug in Chapter 5.
Near the end of the chapter, when Yuizumi invites you in for a drink (the very repeatable bug happens if you decline her offer), after she kisses you goodnight, the game just ends (like who would turn her down right), and while this would be okay if there were no other chapters, it's not so good that there are 5 other chapters you may want to read.
Now when I fix this (and I have), there is the possibility that making changes in the earlier chapters could break the save games (because of the 21 Laws of Computer Programming, specifically 9–11).
9) Not until a program has been in production for at least six months will its most harmful error be discovered.
10) Undetectable errors are infinite in variety, in contrast to detectable errors, which by definition are limited.
11) The effort required to correct an error increases exponentially with time.
And since there is that possibility, I might as well go ahead and do the replay gallery entries for the earlier chapters and break them for sure (maybe, I don't know), and since you will have to replay the entire game to unlock the earlier replay chapters, What not do it now? Right?
I just want to let you all know what's going on with the game and what may occur in the next update.
Stay Safe out there.