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