You came from a very well known and popular family of the leading Koto school in Japan. You had decided to join the Koto Club in High School when you met Chika Kudo, another member of the Koto Club. You and him had grown close because of always practicing and competing together as a club. One night when he stays after school thinking everyone has left for the day, he walks back to the club practice room only to see you alone in the practice room practing the Koto.