the thing with that is I can't see a route that would give you those donuts. If the criteria is to not be on the routes of those two then why they don't appear would be the same no matter what route you tried in another play through. The fact the donuts change depending where you drop a certain girls route is baffling to me.
Finished my play throughs and was under the impression that there were two possible Harem endings, but are "both" simply the dream, and if you have enough points you get the bonus image? Between the built in gallery and the Sancho gallery, this seems to be the case - and I didn't find anything else about it - it just seems that the info you provided suggests otherwise.