Cow Girl mission

[Grail Quest]

Finally got to the cow-girl mission after Sumuru Island.

 

Am I missing a step? How do I find out what each girl likes? There are so many girls and so many possible positions, but only 11 days.

 

The walkthrough just gives the answer, but if there's no way to actually find out what they like, and if you didn't want to do the walkthrough, then you are grinding god knows how many combos for this mission.

[Grail Quest]

Following the walkthrough instructions, for day 1 I went with Anna-C, Aranga, Elenya. The exorcism scene wouldn't end.

 

Savegame attached is at ~6am. The quest update saying Fleur is ready to exorcise has been received but the PC still needs to sleep 2 hours for her to actually be ready.

No cowgirls have been selected yet.

cowgirl_exorcism_wont_end.7z