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