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