Here is the full list of all 12 Pretty Girls Escape PLUS achievements.
Exchange all Point for items
Clear all SEIRA stages
Clear all 9 character stages
Clear all AYARI stages
Clear all SAKURA stages
Clear all AMI stages
Clear all RISA stages
Clear all MEGUMI stages
Clear all ERISA stages
Clear all AOI stages
Clear all AKIKO stages
Played the game for the first time