Here is the full list of all 16 Majotori achievements. It takes around 4-5 hours to unlock all of the achievements on Windows.
Make Nikola and Lariat go on a date.
Turn Sebastian into a master chef.
Finish the game twice.
Finish the game.
Be mentioned in the credits.
Make Xiang rich.
Change Shakespeare's ending.
Win Hector's wish.
Win all of Ava's wishes in one timeline.
Win both Kony's and Oliver's wish.
A character died.
Mariano's relationship problems.
Be trolled by the roulette going back.
Lose a game of trivia.
Correctly answer all the questions of a trivia game.
Win a game of trivia.