Well...
The trial only cover 2 girls, and the other exits lead elsewhere.
The reason nobody in town talked to you is because you steal from someone's house, and that's also why guards are after you.
Once you reach a certain level, you should be able to take the nun into your party.
In the right-most shop, buy the 150g item from there (first option twice) then head left out of town.
Go up to the top-right corner and inspect the well, you'll be teleport to the left side.
Now notice that little cliff to your left, inspect its left walls, there's one spot that'll teleport you up the cliff which let you move on.
In the next area, run around the flower field at the top, eventually the flower nymph will shows up angry at you stomping all over the flowers, beat her to capture her.
