Here is the full list of all 45 Atelier Firis: The Alchemist and the Mysterious Journey achievements.
Watched Revy cook at a food stall.
Used the Corneria doll to refill items.
Passed the official alchemy exam.
Changed costumes.
Wore the clothes your mother sent from home.
Built a ship that can cross a waterspout.
Performed advanced Synthesis for the first time.
Completed the map of an area.
Used Atelier Making to redecorate.
Obtained a letter of recommendation.
Set up your Atelier for the first time.
Discovered a landmark.
Met Sophie and Plachta.
Collected all trophies!
Decided what to do in life.
Built a ship that can fly.
Departed on an alchemic journey with Sophie.
Decided to master alchemy.
Departed on a whimsical journey with Liane.
Opened an atelier with Ilmeria.
Decided to join Drossel's puppet show.
Joined Revy's quest to become the strongest.
Departed on a historical journey with Kald.
Became a teacher at Angriff's new school.
Joined Oskar to befriend plants around the world.
Decided to go on a never ending, mysterious journey.
Enjoyed bathing in a hot spring.
Enjoyed the Flussheim festival.
Listened to a song of appreciation by Luis.
Embraced whole-heartedly by Liane.
Made amends with Ilmeria.
Held a puppet show in Ertona.
Witnessed how much Angriff can drink.
Melted the snow on a mountain.
Visited every area.
Came up with a lot of recipes.
Completed a lot of chain quests.
Submitted a lot of data.
Checked many barrels.
Defeated the Avenger.
Defeated Logius.
Defeated the Sleeper of the Depths.
Defeated Twin Gods Emuel.
Defeated Sophie during the license exam.
Defeated Palmyra.