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