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