Oh, you don't like Villetta? She is not that bad... and she looks cute in her uniform (the one she wore when she was in Purist Fraction)
To get 100% we will have to go through her. There are still 9 pictures missing in Britannia chapter's gallery. But I have no idea how to join with them T.T Replayed that route from scratch, replayed Narita... duh, everything is exactly as it was before T.T
Good luck with Euphie! There wasn't much of her in SD though, so you may have some problems with that