I try, I try~ I think it's harder for people to consistently do the style challenges because of the long wait for stamina.
Sorry about your luck, [member=23177]Ravonna[/member]. My lowest emate is just below 5k, but it could be worse, I suppose. On the flip side, I have two great emates whose event factors are in the double digits already, much love to them! (In addition, one has pretty much all the holiday clothes I need for the style challenges--she gets bonus points and even more love from me.) The other, well, she finished before me and I managed to snatch her 6th slot since she'd requested me earlier. xD My hope now is that they continue playing...
The last mission is 16k iirc. Before that, there seems to be an individual EF requirement. I was at 6590 at the time, so my guess would be 6500. Could be lower.
So it seems like there are 4 parts? After supposedly finishing Izaac's route, the top of the event page said Part 5, but when I tapped "Continue the Story", it led me to a screen to choose my next route. =/ Bummer, since it didn't seem complete. (I want my Christmas Day date, dangit! Give MC her ornaments back!)