Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Lease on Love	Spent the evening before the final battle with Alisa.
Aboard the Pantagruel	Unknown.
Arseid School of Courtsmanship	Spent the evening before the final battle with Laura.
Ashen Chronicles	Unknown.
Banisher of Nightmares	Completed the game on nightmare difficulty.
Born to the Battlefield	Won 100 battles.
Conquering Hero	Completed the game on hard or nightmare difficulty.
Divine Knight Errant	Completed all 39 quests.
Double the Trouble	Used Rush in battle 100 times.
Face of the Enemy	Completely filled the monster guide.
Forging the Future	Acquired the strongest weapon for any character.
Forward, Relentlessly	Unknown.
Frozen Heart	Unknown.
Honor Roll	Achieved student rank A0.
House of All-bro-ea	Spent the evening before the final battle with Jusis.
Imperial Treasury	Acquired over a million mira.
Inseparable	Raised any two characters to Link Level 7.
Intelligence Agent	Completed all of the character profiles in the notebook.
Jaeger Mister	Spent the evening before the final battle with Fie.
Lending Library	Completely filled the book section of the notebook.
Mind if I Cut In?	Used 100 S-Breaks in battle.
National Treasure	Unknown.
One Good Burn Deserves Another	Used over 500 follow-up attacks in battle.
One in a Millium	Spent the evening before the final battle with Millium.
Overdriven to Win	Used Overdrive in battle 100 times.
Perfect Harmony	Spent the evening before the final battle with Elliot.
Phoenix Ascendant	Received the Grand Cordon of the Order of the Phoenix Wings from Emperor Eugent III.
Pieces of Eight	Defeated 8 enemies at once.
Scholar of the Truth	Unknown.
Shutdown Phenomenon	Canceled enemy arts and crafts 100 times.
Smells Like Team Spirit	Used Burst in battle 50 times.
Spoils of War	Opened every chest between the Prologue and the Finale.
Star Pupil	Earned an S rank during part of any chapter.
Tactician	Won a battle with a tactical bonus of x3.0 or greater.
Taking the Initiative	Initiated 300 advantage encounters.
The Ashen Chevalier	Mastered Trails of Cold Steel II and earned every achievement.
The Awakening Lions	Unknown.
The Depths of Despair	Unknown.
The Manway Method	Won 600 battles.
The Occupation	Unknown.
The People's Choice	Spent the evening before the final battle with Machias.
The Reel Deal	Caught all 24 varieties of fish.
The Return of Rean QUARTZ-er	Gathered all 31 varieties of master quartz.
Transcendent Jewel	Raised a master quartz to level 5.
Unexpected Surroundings	Unknown.
Wartime Rationer	Obtained all 22 recipes.
Winderlust	Spent the evening before the final battle with Gaius.
Winter's End	Unknown.
Witchy Woman	Spent the evening before the final battle with Emma.
Worth the Wait	Unknown.
You're Atowable	Unknown.