High school student Yuuichi Katagiri cherishes his close circle of friends, composed of four classmates:  Yutori Kokorogi, Shiho Sawaragi, Makoto Shibe, and Tenji Mikasa. However, when the funds for the upcoming school trip are stolen,  the incident causes Shiho and Makoto—who had been tasked...

Gen Kudou, a koto maker, believes that his delinquent grandson Chika would never understand the profoundness of the traditional musical instrument.  In an attempt to make up for his naivety and understand the words of his late grandfather, Chika tries to join the Tokise High School Koto Club....