Here is the full list of all 48 Atelier Sophie 2: The Alchemist of the Mysterious Dream achievements.
Synthesized an item with Sophie for the first time.
Arrived in Erde Wiege.
Unlocked all achievements.
Met Ramizel.
Agreed to help Elvira.
Found Plachta's soul.
Saw Plachta accept a position of authority.
Encountered a shadow from Diebold's past.
Defeated the Zmei.
Beheld the withering of the Dream Tree.
Journeyed through Elvira's memories.
Saved Elvira from the Groll.
Witnessed the end of a dream.
Made a promise with Plachta.
Learned about Ramizel's newfound dream.
Received a priceless gift from Alette.
Learned about Olias's family.
Helped Diebold reclaim his oath of knighthood.
Gave Pirka a pendant to stave off sleepiness.
Marveled at Gnome's artistic skill.
Assisted Kati in helping a child in Roytale.
Reached the maximum Battle Level.
Unleashed all Dual Triggers.
Broke an aura 30 times.
Activated the effects of talismans 15 times.
Dealt over 99999 in damage with a single attack.
Achieved Super Success more than 10 times.
Synthesized an item with Plachta for the first time.
Devised a new recipe.
Devised all possible recipes.
Activated all Assist Skills at least once.
Obtained all catalysts.
Created an item with 999 quality.
Reached the maximum Alchemy Level with both Sophie and Plachta.
Spent over 100,000 Cole at Pirka's shop.
Changed the weather.
Obtained all weather control tools.
Conducted an extensive barrel inspection.
Played a Major Gathering mini-game using any of the gathering tools.
Played Major Gathering mini-games with all of the gathering tools.
Raised the Adventurer Grade.
Reached the maximum Adventurer Grade.
Learned a Bonus Skill for the first time.
Harvested crops grown from every variety of seeds and in every greenhouse environment at least once.
Defeated Frenzied Elvira on Very Hard difficulty or higher.
Defeated powerful enemies haunted by nightmares in all regions.
Defeated one giant enemy.
Defeated all giant enemies.