I currently have all of the scenes and about half the summons, except for one row or character that I don't know how to unlock. It's the last row of scenes on the front pages right below Helen's 5 main scenes auditorium, club and barn scenes.
If you still don't know: I looked up a walkthrough, and it turns out you can only unlock those scenes by playing the game during certain holidays (Christmas, Easter, Halloween, etc.). It's not a new character, but Helen in various holiday-themed outfits.
Small correction: apparently, it can be any day in the holiday's month instead of having to be on the specific day. It's just that Easter's month is April, so even though Easter technically falls on March 31st this year, we won't get the scene until tomorrow.
