Here is the full list of all 21 Little Dragons Caf achievements.
Game Cleared
The dragon reaches adulthood
Cleared Chapter 11
50 customers or more come in a day
Cleared Chapter 10
Completely change the dragon's color
Cleared Chapter 9
Cleared Chapter 8
Cleared Chapter 7
Cleared Chapter 6
Cleared Chapter 5
Cleared Chapter 4
Cleared Chapter 3
Cleared Chapter 2
Get "Happy" as a feedback
Have 10 items on the Café menu
Cleared Chapter 1
Cleared Prologue
Collect all recipes
Collect all ingredients
Helped out at the cafe more than 50 times in a day