Man... it's still not clear for me. I'm just trying to reach Ending 21 (Rena) The Ending guide says: "for this branch you cannot have rejected Melissa, but Rena must, as the branch states, have been your first choice". WHERE the fuck must Rena have been my first choice??? At which point? There's so many choices involving Rena during the game.. which one is meant here?
DPC wrote that part of the WT in a very confusing way when it was indeed very simple.
There are 2 Rena paths: one where you save Megan and one where you save Melissa. Period.
Obviously, if you want to be able to save Melissa you cannot have rejected her at the beginning of the game; otherwise you will only be able to save Megan from the fire. It was unnecessary for him to mention that and only created further confusion.
As for Rena being your 1st choice, by that DPC simply meant that you had to choose Rena as your only LI in ep 6. After that you will make your 2nd choice, i.e. which girl you're going to save from the fire. But which girl you save doesn't affect the fact that you chose to be in love with Rena.
Also note that there's a mistake in ending 22. He copied-pasted ending 21 and so ending 22 reads "for this branch you cannot have rejected Melissa, but Rena must, as the branch states, have been your first choice." 22 is actually a Rena - Megan ending so in that branch you may have rejected Melissa if you wanted to.
I also noticed that there was a little confusion between you two about clicking on the girl's faces at the end of ep 6.
Well, you cannot click on any girls face. That screen ONLY higlights the girl you have already chosen as your main LI: Megan, Melissa or Rena.
As that screen reads, "your fate is sealed." There's nothing for you to choose there.