Here is the full list of all 12 Sakura Knight 2 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Get Rune's ending
Rest in the rain
Get Tart's ending
Waitress for an evening
Is this an outfit for a waitress?
Time to celebrate!
Save Rune from her misery
Who exactly was she?
Felicia knows CPR?
Pushed, trapped or clumsy?
It's getting in her fur
Felicia's favorite dessert