Here is the full list of all 14 NEKOPARA Vol. 1 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Bouncy, bouncy~
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Welcome to NekoPara!
Clear Chapter 1
Clear Chapter 2
Clear Chapter 3
Clear Chapter 4
Clear Chapter 5
Clear Chapter 6
Clear Chapter 7
Clear Chapter 8
Thank you for playing to the end!