I'm number 15. I spent the whole evening yesterday playing (instead of drawing anime, as planned), and I only got to 15... The game turned out to be more tedious than it seemed at first.
Although, I appreciated the combat with elemental reactions. My current tactic is to start the battle with Amber, shoot from a distance, and throw a rabbit. Xiangling replaces her, throws her fiery doll, and takes out those who have strayed from the group, or finishes off everyone if there are only a few left. If things are bad, Lumine enters the fire and blasts with a fiery storm; after that, no one usually survives. Barbara heals everyone after the battle.
Although it was more fun at the beginning, and not when you've cleared five kobold villages on quests and almost as many more have ambushed you on the roads -_-