Minor spoiler in Zone 2 region:
During dir-klou, Nulkan would say "..You and your sisters.." at the first meaningful talk to Hazel. However, choosing to set up patrols in dir-klou would not get us any riders/priestesses from either side.
After doing sex training, moving to a new location would not let us have another sex training even though the day have changed (sex training -> move from dir-klou to fernia -> +5 days to timer -> sex training cannot be done)