Here is the full list of all 45 Atelier Sophie: The Alchemist of the Mysterious Book achievements.
Collected all trophies.
Defeated the Demon Lord.
Learned every single recipe.
Defeated the Light Elemental.
Slept for 3 whole days.
Saved up 100,000 Cole.
Witnessed Logy find new determination.
Defeated Yasuk.
Raised friend level of all party members to maximum.
Given a challenge by Plachta.
Finished the battle, and returned to the atelier.
Defeated Luard.
Defeated Dorak.
Reached maximum alchemy level.
Enjoyed a waterside vacation with Leon.
Enjoyed Monika's concert.
Saw Oskar carrying Monika in his arms.
Walked in on Horst playing the piano.
Got good at playing the piano.
Cauldron of Knowledge stolen by Meklet and Atomina.
Defeated Nazarus.
Reached maximum adventurer level.
Unleashed a special attack.
Harol showed you the repaired clock.
Went on a date with Tess.
The donation to church reach the target figure which makes Pamela very happy.
Reached maximum Request rank.
Saw Elise without her glasses on.
Found out the machine box is a music box.
Changed Plachta's appearance.
Satisfied Plachta during Doll Making.
Put on a new outfit.
Turned Plachta into a doll.
Received a present.
Enhanced a weapon or armor.
Failed to turn Plachta into a human.
Found the identity of the voice in the cabin.
Crafted a weapon or armor.
Registered an item at the duplication shop.
Saved by a mysterious person.
Something bad happened while traveling.
Purchased a rumor.
Defeated a Puni in your first battle.
Inspected a barrel.
Met Plachta.