Description: "You, you like prime numbers?" A story began from a place where such a voice was spoken from a mysterious beauty girl after school for a day. Let's enjoy finding prime numbers with Motoco-san who likes prime numbers. This is a quiz game to judge whether the numerical question to be given from girls is prime numbers or not. Answer the quiz correctly and fill out the prime number list. Something good happens when it becomes possible to judge a lot of prime numbers!?