It doesn't seem like a lot of your choices from the previous four episodes have any real effect on Order Up!. There are a few aesthetic items like the armor you chose, but as far as consequences to your past decisions, those don't seem to be too prominent. That's one of the reasons Episode 5 feels more like the start of a new season of the game, rather than the wrapping up of the first one. The other cause for that is the fact that there are three new episodes planned to be released that look to continue the story arch kicked off in Order Up!, but more on that later.