I don't think it has any sort of ending or any in-house NPCs other than the guide girl, remember the original also didn't have weddings or the "Playable dates" at launch aswell, those were added at a later datethis game any "ending" system? like dates, or any history(I was expecting any history mode with the Guide girl)? the max thing i archieved is becoming Lover with the girl, and be able to invite her to my hotel room.... And the apply lotion thing...
the latest game, you could date a lot of diferent dates with the girl and becoming more fond of you, and even had a "fake wedding".