第 18 集: 小奏與凪在鶇丘國中文化祭演出
2015年2月20日 播出
Kousei asks Nagi to let him perform at the Kurumigaoka Junior High culture festival. He wants to reach Kaori through his music. With that in mind, he and Nagi take the stage, and their performance begins. But unlike during practice, Kousei, the supporting player, in a complete switch of gears, begins playing at an incredible pace, filling the music with an aching atmosphere, pressuring Nagi. And Nagi, unwilling to give in to Kousei, tries to hold her own… (Source: Official site)