Here is the full list of all 15 Sakura MMO achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
My precious maid
Warming your heart
A thief's background
You better listen to the maid
Sharing the same fate
So good, you even forget about manners
And yet happy
After such a long time
How Ironic
Tough Life of a Knight... or Thief
So much to learn
Quid pro quo
Someone has to help, right?
Or a loyal act
Is this... A dream?