Well first of there is no Harem route, never was
. Second all you have to do is reload the choice between Sage and Jill and go with Jill. Unless you have Dik affinity, then it does not matter anyway with Jill.
and not to be rude, but if you don't have a previous save, then its a "you problem". You always have to have Saves , especially during choices.
I assume none of us, have figured out for the very first playthrough. I personally play the episode when its out, and then I replay it multiple times, with the help of walktrough, and figuring out what I want. That is how I make my Paths. Knowing now, this whole Jill Sage thing, I dont give a shit and pick Jill. I didnt know it first, altouhg I went wiht her anyway
.
But the point is I had my saves, and my previous experience. The only thing I was not prepared, is her masturbation scene, and what it is required. But I had saved and I was prepared,
and just hold the CTRL