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