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