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