Here is the full list of all 59 Yakuza 6: The Song of Life achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
Completed all of the main story.
Completed Chapter 12.
Raised all stats to a natural 300.
Completed Chapter 10.
Jumped from a dangerously high place.
Completed Chapter 8.
Raised all stats to a natural 200.
Found a secret passage.
Completed 31 items on the Completion List.
Chatted with both lovely Live Chat ladies.
Completed Chapter 6.
Completed Chapter 4.
Obtained 10,000 total experience points.
Completed 10 items on the Completion List.
Experienced the trials of raising a baby.
Activated Extreme Heat Mode 10 times.
Completed Chapter 2.
Obtained 25 skills.
Obtained 10 skills.
Raised the Heat Gauge to a natural 150.
Raised Evade to a natural 150.
Raised Defense to a natural 150.
Raised Attack to a natural 150.
Raised Health to a natural 150.
Made a store employee angry at you.
Obtained 1,000 total experience points.
Walked 30 seconds in first-person mode.
Arrived in Kamurocho for the first time.
Obtained all other achievements.
Completed the game on LEGEND difficulty.
Completed 10 substories.
Completed 40 substories.
Completed all substories.
Completed 5 types of Trouble Missions.
Completed 20 types of Trouble Missions.
Ran away from 10 encounters successfully.
Obtained all skills.
Defeated Amon on any difficulty.
Obtained 100,000 total experience points.
Completed 100 items on the Completion List.
Assembled the Kiryu Clan.
Reached level 3 in the Kiryu Clan.
Completed the Clan Creator storyline.
Raised the Kiryu Clan's influence to 10,000.
Maxed out a Kiryu Clan leader's stats.
Achieved 100 victories with the Kiryu Clan.
Played every minigame.
Experienced every RIZAP training.
Defeated the Emperor Squid.
Reached Beloved Customer rank at Snack New Gaudi.
Requested every hostess.
Played every Club SEGA game.
Rescued three stray cats.
Won a baseball game.
Pulled "Great Blessing" at the temple.
Activated five types of eatery combos.
Took a photo of Ono Michio-kun.
Engaged enemies while a drink's effect is active.
Got surrounded by enemies while trying to take a picture.