Full list of all 42 Sable's Grimoire achievements.
The base game contains 39 achievements, and there is 1 DLC pack containing 3 achievements.
Betray your friend's trust and have her committed against her will
Help Jorou to transform into a new person
Incur the wrath of a yuki-onna
Help one of your friends to get the help she needs - even if she doesn't want it
Find love in an unexpected place
Lie in order to spare Jorou's feelings
Aid in a student's rehabilitation
See for yourself the evils committed by man
Complete Rei's route
Complete Eth's route
Finish training Ciel in human affairs
Spend a night alone with two demi-human girls
Tutor the most hopeless students you can find
Challenge the master of flexibility
Endure the advances of two demi-human girls at once
Let Tix's fate take its course
Complete Tix's route
Brave the perils of a forest filled with pixies
Resist Tix's seduction until the end
Whip that greenhorn pixie into shape
Give life to earth and stone
Die of starvation
Die at the hands of a dark elf
Complete Lisha's route
Learn the truth about Bartholomew
Finish reading Ein's book
Survive your first encounter with a dark elf
Show Rei the meaning of romance
Attempt to stop a violent crime (unsuccessfully)
Help Drakan to find a place where she belongs
Live out your days as a dragon's treasure
Complete Drakan's route
Unwittingly walk down a strange path alongside dragonkind
Dabble in the art of teleportation
Act like a true friend to someone in need
Break free from the magical artifact binding you
Share an indirect kiss with Drakan
Accept Ein's offer to accelerate your education
Impress your grade's valedictorian in a battle of wits
Completed Eris's neutral end
Complete Eris's good end
Complete Eth & Rei's true end