Here is the full list of all 22 The Fantasy World of Mahjong Princess achievements.
Earn 10000 coins
One student has a training level of 40 or above
Win 20 games
Unlock 15 intimacy
One student has a training level of 20 or above
Earn 5000 coins
Win 10 games
Earn 3000 coins
Unlock 5 intimacy
Join four students
Bediyar is awarded the title of Queen
Carali is awarded the title of the Queen
Valkyrie is awarded the title of the Queen
Elisabeth is awarded the title of Queen
One student has a training level of 60 or above
Unlock 25 intimacy
Unlock 35 intimacy
Unlock 45 intimacy
Win 50 games
Win 100 games
Earn 20000 coins
Earn 50000 coins