Here is the full list of all 57 The Legend of Heroes: Trails to Azure achievements.
Completed the Finale, 'The Path We Chose.'
Defeated 16 enemies in a single battle.
Used 100 S-Breaks.
Completed all quests.
Defeated over 2,000 enemies.
Acquired the strongest weapon for any character.
Collected all volumes of Sunshine Agnès.
Became a 1st Class Senior Detective.
Deduced Mr. Grimwood's role as the mastermind.
Learned every combo craft.
Forged a strong bond with Elie.
Completed the Fragments, 'Crossing False Paradise.'
Completed Chapter 4, 'Crossbell's Fate.'
Achieved 500 victories in battle.
Completed Chapter 3, 'Budding Turmoil.'
Defeated 8 enemies at once.
Completed the Intermission, 'A Brief Respite.'
Completed Chapter 2, 'The West Zemuria Trade Conference.'
Completed Chapter 1, 'Bright Skies, Gathering Storms.'
Achieved 100 pre-emptive attacks.
Achieved 100 victories in battle.
Completed the Prologue, 'Traces of D.'
Learned how to use the Enigma II.
Mastered Trails to Azure and earned every achievement.
Collected all information in the Combat Notebook.
Opened every treasure chest.
Collected all quartz.
Collected all decorations and Enigma covers.
Collected all orbal car customization options.
Caught all fish.
Obtained all recipes.
Created all supreme dishes.
Created all peculiar dishes.
Had one million mira or more.
Played for over 100 hours.
Scored at least 4,000 points on the Horror Coaster.
Defeated all opponents in Pom! Pom! Party!
Achieved 1,000 victories in battle.
Canceled 100 enemy arts or crafts.
Won a battle with a tactical bonus of ×4.00 or more.
Won a chain of three consecutive battles.
Activated Burst 50 times.
Gain access to all seven master arts.
Became able to use each element's strongest art at the same time.
Raised Lloyd, Elie, Tio, and Randy to level 120.
Completed the game on hard or nightmare difficulty.
Completed the game on nightmare difficulty.
Analyzed every D∴G cult terminal.
Defeated Vermillion.
Brought the Steel Maiden to her knees.
Forged a strong bond with Tio.
Forged a strong bond with Randy.
Forged a strong bond with Noel.
Forged a strong bond with Wazy.
Forged a strong bond with Rixia.
Forged a strong bond with Dudley.
Forged a strong bond with KeA, Fran, Cecile, Ilya, and Sully.