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