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