The story focuses on the Koto club of the Tokise high school. Takezo Kurata, in his second year, is the only member left in the Koto club, after all the senior members have graduated. While he is trying his best to recruit more members into the club, Kudo Chika submits his application. But, since Kudo is known to be a delinquent, one who destroyed his own grandfather’s koto shop, Takezō is apprehensive about him. Things change when he comes to know the truth. Also joining the club is the Koto prodigy, Satowa Hōzuki, who has her own agenda. More members join the club in time, holding their own reasons for joining. However, in the end, they all have the same goal – to play at the Koto Nationals competition.