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