In the walkthrough, Ending 1 section, where it says
"Rika Makiba (3)"
does that mean 3 additional times after the first time? Or does it mean 3 times total including the first time?
There was supposedly an english android port that was downloadable on Manga Gamer. I kept it hearing about it in various reddit threads and comments in this thread. Maybe its possibly lost? I don't think has ever archived the english version if the apk.
No, not really. Even if you just get Nemu's ending, you don't have to clear the other heroines' routes to get the true end. Heck, you really only need Kanae and Nemu's routes to to understand what's going on because the whole mystery is revealed along the way of their endings. If you're not content with the true end, I suggest you try Rinne's route cos she's really sweet in the first half but she gets weirder the longer you're with her lol.