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