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