"Keitai Shoujo" is a love simulation game with the aim of making a girlfriend in about 40 days until Christmas with Lin, a girl who became a mobile phone girl. As you live your daily school life, let's talk to girls, email and date. At specific events, the PPM (psychedelic pink motion) system that allows you to freely appreciate girls is activated, and the reaction and favorability of girls changes depending on the point of view, and there are also factors such as being reflected in the game. Please enjoy the pure love story with the five girls who appear.