Here is the full list of all 47 Judgment achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Completed all of the main story.
Found all the stray cats while in search mode during the main story.
Presented the right evidence to the judge on the first try.
Doubled your chips at L'Amant.
Completed Chapter 12.
Saved Sugiura with less than 10 seconds left.
Obtained all skills.
Cleared all of the side cases.
Defeated the opponent in the side case, "A Final Request."
Sold 100 items to Ebisu Pawn.
Made 50 friends.
Four girls revealed their true feelings.
Completed Chapter 10.
Two girls revealed their true feelings.
Completed Chapter 8.
Got the password right on the first try.
Ate all of Tomioka-san's homecooked meals.
Played every arcade game.
Entertained the customer flawlessly.
Completed 10 stores in KamuroGo's Shop Missions.
Completed Chapter 6.
Completed all Dice & Cube courses and rules at Paradise VR.
Cleared 30 side cases.
Won first place in every D-League race.
Flew the drone in first person mode for 60 seconds.
Controlled the drone for over an hour.
Fully investigated Terasawa.
Completed 30 KamuroGo City Missions.
Made 30 friends.
Completed Chapter 4.
A girl revealed her true feelings.
Completed five stores in KamuroGo's Shop Missions.
Obtained 60 skills.
Completed Chapter 2.
Cleared 10 side cases.
Completed 10 KamuroGo City Missions.
Made 10 friends.
Obtained 30 skills.
Retrieved the money from the Horseplayer Detective.
Obtain all other achievements.
Completed the game on LEGEND difficulty.
Completed all of KamuroGo's Shop Missions.
Completed all KamuroGo City Missions.
Shopped 100 times.
Obtained 50 pickups in Kamuro of the Dead.
Obtained all drone parts.
Achieved 100% completion of KamuroGo. Wow!