Here is the full list of all 56 Like a Dragon: Ishin! achievements. It takes around 120-150 hours to unlock all of the achievements on Windows.
Collected all achievements.
Completed the game on Legend difficulty.
Brought the Completion List to 100%.
Enhanced equipment 100 times.
Broke Ryoma's stats beyond their limits.
Completed all tasks in the Diligence Records.
Defeated 100 enemies with Special Moves outside Ultimate Challenges.
Cleared the Sanada Stronghold.
Gathered 100 troopers for the Third Division.
Cleared the Bandits' Mine.
Cleared the Bandits' Cave.
Entered a Battle Dungeon 3 times.
Attained all Revelations.
Reached Level 50.
Won 10 arena battles.
Completed every Ultimate Challenge.
Completed all Bonds.
Completed the final chapter.
Paid off Haruka's debt in full.
Completed all Substories.
Cleared each of the courtesan minigames.
Played every minigame.
Changed the interior design of your second home.
Completed Chapter 12.
Brought the Completion List to 50%.
Caught a total of 10 fish.
Tried your hand at each type of gambling.
Made at least 10 ryo in sales at the Udon Shop.
Ordered at least one item at every restaurant.
Reached max Social Rank in one of the locales.
Trained with each master of combat.
Helped the Tachibanagumi bring the Tengu to justice.
Earned at least 300,000 Virtue in total.
Completed Chapter 10.
Completed Chapter 8.
Completed 50 tasks in the Diligence Records.
Completed 40 Substories.
Placed bets on 5 chicken races.
Cooked 7 different dishes.
Performed every song at Utamaruya.
Earned at least 100,000 Virtue in total.
Performed every dance at Nichibuza.
Fulfilled 10 trade orders at your second home.
Watched a Slice of Life event at your second home.
Completed Chapter 6.
Completed 20 tasks in the Diligence Records.
Earned at least 50,000 Virtue in total.
Grew 10 different kinds of plants in the garden.
Completed Chapter 4.
Completed 10 Substories.
Completed your first Bond.
Earned at least 10,000 Virtue in total.
Completed 5 tasks in the Diligence Records.
Completed Chapter 2.
Unlocked 10 abilities with Soul Orbs.
Set foot in Tosa.