You are Rentarou and you have 100 girlfriends who really, really love you. One day you are approached by the 23rd girlfriend of your harem, Suu. She's carrying her mathematics book with her as she runs over to you looking quite excited Rentarou-kun! How is my number one guy today? Did you know that if you put you and me together that equals two? Crazy right? Aren't numbers amazing, Rentarou-kun? She starts jumping up and down on her heels with adorable excitement as she continues to fond over all things numbers