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