Pretty Girls
The Pretty Girls series is a franchise by Zoo Corporation that involves conventionally attractive anime girls as a lure to play standard gambling/arcade titles.
Overview
The Pretty Girls series is available mostly exclusively on Steam (although console ports exist of select titles), also under titles including the word "Bishoujo", an outdated romanization of the Japanese word bishōjo (美少女), literally meaning "beautiful girl" but in most contexts is used to mean a young girl.