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.
Assaulted by Majima from a manhole.
Completed chapter 12.
Completed chapter 11.
Won all tournaments in the underground coliseum.
Assaulted by Majima from above.
Thug Majima forced his way into a fight.
Upgraded all Majima Everywhere abilities.
Won all Pocket Circuit races.
Completed 50% of the Completion List.
Obtained all Soul, Technique, and Body abilities.
The Mad Dog of Shimano forced his way into a fight.
Breaker Majima forced his way into a fight.
Completed all training for Komaki Style.
Completed chapter 10.
Completed chapter 9.
Completed chapter 8.
Completed 30 substories.
Met the mysterious lady, Goromi.
Reached Rank B in Majima Everywhere.
Completed chapter 7.
Completed chapter 6.
Completed chapter 5.
Completed "The Price of an F-Cup."
Completed 10 substories.
Met Zombie Majima.
Completed chapter 4.
Met Officer Majima.
Completed chapter 3.
Completed chapter 2.
Got chased by Majima.
Obtained at least 10 Soul, Technique, and Body abilities.
Completed chapter 1.
Collected the money owed.
Obtain all other achievements.
Completed 100% of the Completion List.
Slugger Majima forced his way into a fight.
Spent a steamy moment with Yui.
Spent a steamy moment with Rina.
Completed all substories.
Successfully asked a hostess out on a date.
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.
Completed "My Baby's a Showgirl."
Completed "Bet On A Champ."
Completed "Wife of a Yakuza."
Completed "A Doctor's Duty."
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.