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