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