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