Here is the full list of all 53 The Legend of Heroes: Trails into Reverie achievements.
Obtained all achievements.
Cleared the game on Nightmare difficulty.
Achieved 1500 victories in battle.
Raised any master quartz to level 15.
Accomplished all Master Missions and received compensation. (Excludes Coda Content)
Collected 55 types of master quartz.
Raised any two characters to Link Level 7.
Conquered 9 Trial Doors.
Bore witness to a certain conversation.
Collected 6 types of Lost Arts quartz.
Completely filled the battle section of the notebook. (Excludes Coda Content)
Cleared Finale - Hope in Reverie.
Completely filled the character section of the notebook. (Excludes Coda Content)
Went into the final battle equipped with evidence needed to discern the truth.
Opened all treasure boxes. (Excludes Reverie Corridor Daydreams)
Earned 2,000,000+ mira.
Enjoyed all activities in the Beachside Vac-Cay Daydream.
Had all daydreams. (Excludes Coda Content/DLC Episodes)
Reached Liberation Rank S.
Completely filled the recipe section of the notebook. (Excludes Coda Content)
Defeated 8 enemies at once.
Performed 50 United Front Heals.
Enacted 100 United Front Attacks.
Cast 100 United Front Arts.
Forged 3 types of weapons with Black Zemurian Ore.
Won against all opponents in Pom! Pom! Party!
Won against all opponents in Vantage Masters. (Excludes Gold Sealing Stone and VM Dojo Characters)
Completely filled the fishing section of the notebook. (All 26 Species of Fish + Rod Lv. Max)
Completely filled the books section of the notebook. (Excludes Marksman of the Moonless Morn)
Cleared Rean's Route: Act IV - Zeroth Hour.
Cleared Lloyd's Route: Act IV - Will, Tempered by Dusk.
Cleared C's Route: Act IV - Elysium.
Achieved 500 victories in battle.
Initiated 300 advantageous encounters. (Includes Double and Triple Advantage)
Cleared Rean's Route: Act III - Cruel Blue Skies.
Induced 800 break states.
Cleared Lloyd's Route: Act III - Illusions Shattered.
Cleared C's Route: Act III - Light in the Dark.
Enacted 100 Brave Orders.
Performed 500 assists.
Performed 100 Rushes.
Performed 50 Bursts.
Cleared Lloyd's Route: Act II - Lost Heroes.
Cleared Rean/C's Route: Act II - Vermillion Muck and Mire/Slinking in the Shadows.
Performed 100 S-Crafts.
Achieved 100 victories in battle.
Won a battle with a tactical bonus of x3.0 or greater.
Used arts that target an enemy's weak point 100 times.
Cleared Rean's Route: Act I - As the Snow Thaws.
Cleared ???'s Route: Act I - Evening of Encounters.
Cleared Lloyd's Route: Act I - Signing Ceremony.
Cleared Prologue - Operation: Liberate Crossbell.
Began the operation to liberate Crossbell.