Here is the full list of all 55 Yakuza Kiwami achievements. It takes around 80-100 hours to unlock all of the achievements on Windows.
Completed the final chapter.
Completed chapter 12.
Completed chapter 11.
Obtained all Soul, Technique, and Body abilities.
Spent a steamy moment with Yui.
Completed chapter 10.
Completed chapter 9.
Completed chapter 8.
Slugger Majima forced his way into a fight.
Assaulted by Majima from a manhole.
Reached Rank B in Majima Everywhere.
Completed chapter 7.
Completed "A Doctor's Duty."
Completed 50% of the Completion List.
Won all Pocket Circuit races.
Completed chapter 6.
Breaker Majima forced his way into a fight.
Completed 30 substories.
Met Zombie Majima.
Thug Majima forced his way into a fight.
Successfully asked a hostess out on a date.
Completed "My Baby's a Showgirl."
Met the mysterious lady, Goromi.
Completed chapter 5.
Completed 10 substories.
Met Officer Majima.
Completed chapter 4.
Completed "The Price of an F-Cup."
Completed chapter 3.
Obtained at least 10 Soul, Technique, and Body abilities.
Completed chapter 2.
Got chased by Majima.
Completed chapter 1.
Collected the money owed.
Obtain all other achievements.
Completed 100% of the Completion List.
The Mad Dog of Shimano forced his way into a fight.
Upgraded all Majima Everywhere abilities.
Spent a steamy moment with Rina.
Completed all substories.
Completed all training for Komaki Style.
Won all tournaments in the underground coliseum.
Enjoyed mahjong with a hostess.
Won against all rivals in MesuKing.
Played all minigames.
Walked 1km during Premium Adventure while holding Haruka's hand.
Completed the game in Legend Mode.
Assaulted by Majima from above.
Completed "Bet On A Champ."
Completed "Wife of a Yakuza."
Completed "The Fake Mizuki's Truth."
Completed "Man On a Ledge."
Defeated Amon.
Completed all of the Climax Battles.
Obtained EX Rank on Haruka's Requests.