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