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