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