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