The walkthrough is for ntr on, if you turn it off a number of dialogue options won't be available.
Also what is up with them saying 'What's their name' and not letting you put a name in? I was a bit confused, you can name the nurse and you can name yourself (even though the intro says your name is Alex), but you can't name anyone else? Why is rollback locked too? Seems silly in a game where they have pictures hidden on a single frame, where you have to perform a specific sequence of things like look at the bed, then look at the closet, then look at the bed again, but don't accidentally click the mouse button again or the special secret photo will vanish! Also the writing, did the MC get in a carwreck and then develop autism? You don't just blurt out You are cocksleeve to someone unless you have tourettes and autism. It was around this point I just sorta stopped paying as much attention to every little mistake or weirdness, otherwise I would've ended up writing a book.
Overall I think this is Tremmi's best work, the MC starts out as an unlikeable prick, but gradually improves. The game is still very convoluted, even if you follow the walkthrough you still can miss things easily. It would benefit greatly from a built in walkthrough mod, but even then the very nature of the game doesn't allow you to get everything, which is a major flaw imo. Harem by it's very definition is pokemon and if you can't catch them all what is the point? Ntr seems to have been dialed back, I'm not a big fan of that and I get that finding a balance is tough. Even games like Power Vacuum, where ntr is the non canonical outcome, gets bitched about nonstop in that thread. So pleasing everyone is no simple task.
In the future maybe dial back the check the area 3x for the hidden item to finish the quest sorta stuff and cut back on missables, since those only serve to discourage most of the time. OH YEAH, wtf is up with the rollback? Even if you use the unren option to force it, the fucking game overwrites that randomly as a hidden fuck you. So you have to save the game, hop out, turn on rollback in unren again and then continue. It was pretty frustrating.