Here is the full list of all 27 NEKOPARA Vol. 3 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Clear Chapter 15
Clear Chapter 14
Clear Chapter 13
Clear Chapter 12
Clear Chapter 11
Clear Chapter 10
Clear Chapter 9
Clear Chapter 8
Clear Chapter 7
Clear Chapter 6
Clear Chapter 5
Clear Chapter 4
Clear Chapter 3
Clear Chapter 2
Clear Chapter 1
Petted Shigure
Petted Cinnamon
Petted Maple
Try playing it in Chinese!
Try playing it in Japanese!
Petted Azuki
Petted Coconut
Bouncy, bouncy~
Petted Chocola
Petted Vanilla
Welcome to NekoPara!
Try playing it in English!