Here is the full list of all 9 My Lady achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
The girl marries her prince. Checkmate.
The girl gets trapped in the glass case. Knight takes Bishop.
The girl chooses the prince and the pauper. Stalemate.
You chose to wear red...
The girl unties her ribbon from her neck. Forfeit.
The lady locks the girl in her tower. Queen takes Bishop.
Manners are often overlooked...
You chose to wear white...
You began your story...