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.
Finish the game.
Be mentioned in the credits.
Change Shakespeare's ending.
Win all of Ava's wishes in one timeline.
Turn Sebastian into a master chef.
Win Hector's wish.
Make Nikola and Lariat go on a date.
Correctly answer all the questions of a trivia game.
Make Xiang rich.
Mariano's relationship problems.
Win both Kony's and Oliver's wish.
Be trolled by the roulette going back.
A character died.
Lose a game of trivia.
Win a game of trivia.