Here is the full list of all 20 Justice Chronicles achievements.
Story 1: You have seen the opening, and are able to move freely.
Story 11: You are reunited with Josh, after returning to Naud Hamlet.
Story 21: The adventure on the Earth-Surface begins.
Story 38: The six allies are united.
You have seen the ending.
After the trials, you have seen the true ending.
You have defeated the King of the Guardian Beasts in the Other World.
You have completed your first craft.
Kline's level has reached 99.
You have collected all strengthening materials.
You have collected all weapons and armor.
You have collected all Crafting Recipes.
The Partona Level of Kline and one of the other human members has reached the maximum level.
You have collected all Magic Meteorites.
You have found and defeated the madman in Laft.
You have collected all accessories.
You have completed all the quests.
Total money gained has reached 10,000G.
Total money gained has reached 100,000G.
Total money gained has reached 1,000,000G.