Here is the full list of all 19 The Choice of Life: Middle Ages achievements.
Reborn 30 times
Defeat the mercenary
Get rid of the Demon forever
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Read the first and second volumes of the book "The Victory of Good"
Reborn 10 times
Prevent a fire in the scriptorium
Destroy the kingdom
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Help the Prince to imprison the Demon
Complete the trial of the treasury keeper
Cheer the King
Check the friendship of two friends
Defeat the Bandit Leader
Enter the city through the main gate
Enter the city through sewers
Complete the blacksmith's challenge
Get the title for the first time
Make a deal with the spirit