Here is the full list of all 38 Pretty Girls Panic! achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
First game play.
Cleared MAYA Stage1.
Clear all stages of MAYA.
Cleared SHION Stage1.
Cleared SHION Stage2.
Clear all stages of SHION.
Cleared HIROKO Stage1.
Cleared HIROKO Stage2.
Clear all stages of HIROKO.
Cleared AMI Stage1.
Cleared AMI Stage2.
Clear all stages of AMI.
Cleared SAYA Stage1.
Cleared SAYA Stage2.
Cleared SAYA Stage3.
Cleared SAYA Stage4.
Clear all stages of SAYA.
Cleared KAORI Stage1.
Cleared KAORI Stage2.
Cleared KAORI Stage3.
Clear all stages of KAORI.
Cleared REN Stage1.
Cleared REN Stage2.
Cleared REN Stage3.
REN stages all cleared
Cleared AKENO Stage1.
Cleared AKENO Stage2.
Clear all stages of AKENO.
Cleared YUUKO Stage1.
Cleared YUUKO Stage2.
Clear all stages of YUUKO.
Clear all stages of AISIAS.
Clear all stages of SERAS.
Clear all stages of REIU.
Clear all stages of CECIL.
Clear all stages of YUKATA girls.
Clear all stages of characters.