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