Thanks very much for playing our game and sharing your thoughts! We're so glad to hear that it had such an impact on you, as we wondered if people would be able to be invested in the story or the characters if they didn't personally relate to them or the setting!
Yes, the 4th ending is considered the "true" or "best" end -- and congratulations on getting it your first try, since it seems like a lot of people have had trouble getting it, haha.