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