Since the start of the Dusk/Twilight trilogy, Gust has experimented with gameplay elements while having a somewhat darker story with the Earth in decline. In the last game, Escha and Logy allowed all 6 members (three active) to participate in battle while improving the alchemy gameplay by allowing you to choose the traits again. Also, you can see what tasks you need to get done along with what rewards you will get if you get a line up. Of course, the biggest addition is that there are now two protagonists you can play as, which has not been in the game since Mana Khemia 2.
The third and possibly last entry in the Dusk/Twilight trilogy is Atelier Shallie, which of course not only have dual protagonists (both female), but it also bring backs some game mechanics from Mana Khemia 2 such as getting rid of the time limit, variable strike and the burst gauge while introducing some new features and improvements. Since I have beaten the game at least once, its time to share my thoughts.