Here is the full list of all 15 Sakura MMO Extra achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Leaving was never an option
You were not the only one thinking about it
Is that really it?
New piece in the wardrobe
Review Eleri's and Fion's maid outfits
Let Holly and Aislinn help out
...or a magic spell?
Hugged out of trance
Or a new service
Meet an old friend
Probably not the easiest job change
Bonnie warmed up to you
Everything has to be perfect
A knight at heart - not a maid
Two girls with too much energy