Here is the full list of all 59 Yakuza Kiwami 2 achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Obtained all achievements.
Completed 100% of the Completion List.
Completed the game in Legend mode.
Completed the Majima Saga.
Learned all Battle Skills.
Learned all skills.
Defeated all street bosses.
Played all minigames.
Completed all bouncer missions.
Learned all Heat Actions.
Defeated 100 enemies using weapons.
Win all the Coliseum's tournaments.
Complete all substories.
Completed the "Ultimate Assassin" substory.
Possessed over 200,000 points in Clan Creator.
Completed the Clan Creator storyline.
Raised all base stats to maximum.
Opened all coin lockers.
Learned all Life Skills.
Drank all drink types from vending machines.
Watched all the videos.
Donated 1,000,000 yen to Sunflower Orphanage.
Recruited over 50 workers into Majima Construction.
Broke the limit on a base stat.
Ate at all restaurants.
Registered 30 hostesses.
Completed the final chapter.
Completed Chapter 15.
Completed Chapter 14.
Completed Chapter 13.
Lent an ear to all the platinum hostesses.
Completed the Four Shine storyline.
Took 10 photographs.
Completed Chapter 12.
Raised Defense to a natural 180.
Raised Attack to a natural 180.
Raised Health to a natural 180.
Completed Chapter 11.
Possessed over 10,000,000 yen.
Completed Chapter 10.
Won first league championship in the Cabaret Club Grand Prix.
Raised the Heat Gauge to a natural 180.
Completed Chapter 9.
Completed Chapter 7.
Completed Chapter 8.
Completed 30 substories.
Completed Chapter 6.
Completed Chapter 5.
Became a Majima Construction employee.
Completed 50 items on the Completion List.
Completed Chapter 4.
Joined Club Four Shine.
Destroyed an establishment three times.
Completed 10 substories.
Completed 30 items on the Completion List.
Completed Chapter 3.
Completed 10 items on the Completion List.
Completed Chapter 2.
Completed Chapter 1.