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