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.
Brought the Completion List to 100%.
Enhanced equipment 100 times.
Completed all tasks in the Diligence Records.
Broke Ryoma's stats beyond their limits.
Attained all Revelations.
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.
Completed every Ultimate Challenge.
Won 10 arena battles.
Completed the final chapter.
Completed the game on Legend difficulty.
Completed all Substories.
Reached Level 50.
Paid off Haruka's debt in full.
Completed all Bonds.
Played every minigame.
Tried your hand at each type of gambling.
Completed Chapter 12.
Completed Chapter 10.
Completed Chapter 8.
Completed Chapter 6.
Brought the Completion List to 50%.
Completed Chapter 4.
Changed the interior design of your second home.
Cooked 7 different dishes.
Helped the Tachibanagumi bring the Tengu to justice.
Completed 40 Substories.
Earned at least 300,000 Virtue in total.
Watched a Slice of Life event at your second home.
Fulfilled 10 trade orders at your second home.
Grew 10 different kinds of plants in the garden.
Cleared each of the courtesan minigames.
Ordered at least one item at every restaurant.
Trained with each master of combat.
Placed bets on 5 chicken races.
Completed 50 tasks in the Diligence Records.
Reached max Social Rank in one of the locales.
Earned at least 100,000 Virtue in total.
Performed every dance at Nichibuza.
Earned at least 50,000 Virtue in total.
Completed 20 tasks in the Diligence Records.
Completed 10 Substories.
Completed Chapter 2.
Caught a total of 10 fish.
Earned at least 10,000 Virtue in total.
Completed 5 tasks in the Diligence Records.
Performed every song at Utamaruya.
Completed your first Bond.
Made at least 10 ryo in sales at the Udon Shop.
Unlocked 10 abilities with Soul Orbs.
Set foot in Tosa.