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