The Light Music Club tries to reserve the stage at the school festival, but they are informed that they have not yet been recognized as an official club. Ritsu had put off filling out the club application, so they were never officially formed. Luckily, Nodoka helps them fill out a form, but tells them that they need a club advisor. They ask Sawako-sensei, one of the most popular teachers at the school. When she refuses because she is already an advisor, they bring up that they found an old album from a previous Light Music Club. Sawako snaps and dashes off to the clubroom, but finds that the picture she was looking for was gone. When confronted by the girls, she admits to being a part of the Light Music Club, but she would rather hide that fact now. Ritsu blackmails her into becoming the club advisor. When Sawako hears the song, she is surprised that there are no lyrics. The next day, Mio comes in with lyrics to the song, but refuses to sing it. Tsumugi says she is too busy with the keyboard, so they have to ask Yui. However, Yui is unable to sing and play at the same time. After some intensive training with Sawako, Yui is not only able to play the guitar while singing, but she has improved as well. Unfortunately, she lost her voice, so the only person who can sing is Mio.