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