Here is the full list of all 20 NEKOPARA Vol. 2 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Petted Coconut
Petted Cinnamon
Petted Maple
Petted Vanilla
Petted Chocola
Petted Azuki
Try playing it in Chinese!
Try playing it in Japanese!
Petted Shigure
Bouncy, bouncy~
Welcome to NekoPara!
Try playing it in English!
Clear Chapter 1
Clear Chapter 2
Clear Chapter 3
Clear Chapter 4
Clear Chapter 5
Clear Chapter 6
Clear Chapter 7
Petted Milk