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