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