Here is the full list of all 22 Prank Heart achievements.
Launched the game for the first time.
Completed the tutorial.
Used an item once.
Used items a total of 100 times.
Attacked 100 times with the paper fan.
Attacked NPCs 100 times with the paper fan.
Played once as a detective.
Achieved first victory as a detective.
Won a total of 50 times as a detective.
Suffered first defeat as a detective.
Defeated a total of 50 times as a detective.
Made the first arrest as a detective.
Made a total of 100 arrests as a detective.
Played once as a phantom thief.
Achieved first victory as a phantom thief.
Won a total of 50 times as a phantom thief.
Suffered first defeat as a phantom thief.
Defeated a total of 50 times as a phantom thief.
Arrested for the first time as a phantom thief.
Stole a treasure once as a phantom thief.
Stole treasures a total of 100 times as a phantom thief.