Here is the full list of all 15 Pretty Girls Klondike Solitaire achievements.
Completed all EPHELIA costumes.
Completed All costumes.
Completed all TSUBAKI costumes.
Completed all AOI costumes.
Completed all HONOKA costumes.
Completed all SENA costumes.
Completed all SHIORI costumes.
Completed all SERIKA costumes.
Cleared Normal mode.
Completed all NAGISA costumes.
Cleared Hard mode.
Completed all MAYU costumes.
Cleared Easy mode.
Completed all AIRI costumes.
Played a first game of Solitaire.