Asakusa’s Mokubatei is the only theater in the Kanto region that regularly bills rokyoku—a form of narrative singing accompanied by shamisen. Backstage, a variety of lives intersect, and the art is passed down from practiced singers to the younger generation. The film’s main character is Minatoya Kosome. It follows Kosome from her growing enraptured by rokyoku singer Minatoya Koryu, then becoming the legend’s apprentice—until to the day she is formally announced as Koryu’s successor and namesake.