Here is the full list of all 28 love love love achievements.
Failure 50 times
Failure 30 times
Failure 5 times
Failure 10 times
Play in window mode
Failure 1 times
Watch any 5 CG picture
Watch any 1 CG picture
Watch any 3 CG picture
PASS 1
PASS 2
PASS 3
PASS 4
PASS 5
PASS 6
PASS 7
PASS 8
PASS 9
Unlock level 1 full picture
Unlock level 2 full picture
Unlock level 3 full picture
Unlock level 4 full picture
Unlock level 5 full picture
Unlock level 6 full picture
Unlock level 7 full picture
Unlock level 8 full picture
Unlock level 9 full picture
Play in full screen mode