Full list of all 51 The Legend of Heroes: Trails of Cold Steel achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Forged a strong bond with Emma.
Forged a strong bond with Jusis.
Forged a strong bond with Laura.
Forged a strong bond with Alisa.
Completed the final chapter.
Forged a strong bond with Sara.
Won 500 battles.
Caught all varieties of fish.
Received the Lionheart Medal of Heroism from Principal Vandyck.
Completed Chapter 6.
Defeated 8 enemies at once.
Raised a master quartz to level 5.
Completed Chapter 5.
Raised any two characters to Link Level 5.
Completed Chapter 4.
Completed Chapter 3.
Completed Chapter 2.
Won 100 battles.
Completed Chapter 1.
Completed the prologue.
Won a battle with a tactical bonus of x2.0 or greater.
Arrived in Trista for the first day of school.
Mastered Trails of Cold Steel and earned every trophy.
Achieved student rank A0.
Completed all quests, both extra-curricular and during field studies.
Completely filled the monster guide.
Obtained all recipes.
Completed all of the character profiles in the notebook.
Completely filled the book section of the notebook.
Opened every treasure chest in a single playthrough.
Gathered all 28 varieties of master quartz.
Completed the game on nightmare difficulty.
Completed the game on hard or nightmare difficulty.
Acquired over a million mira.
Played for over 100 hours.
Acquired the strongest weapon for any character.
Won 1000 battles.
Initiated 300 advantage encounters (including double and triple advantage).
Used 100 S-Breaks in battle.
Canceled enemy arts and crafts 100 times.
Used over 500 follow-up attacks in battle.
Used Rush in battle 100 times.
Used Burst in battle 50 times.
Earned an S-Rank on any chapter.
Forged a strong bond with Elliot.
Forged a strong bond with Machias.
Forged a strong bond with Fie.
Forged a strong bond with Gaius.
Forged a strong bond with Millium.
Forged a strong bond with Crow.
Forged a strong bond with Towa.