Three days left 'til the music festival, the girls are still not officially recognized as a club. Ritsu blackmails a previous club member to be their advisor.

The annual school festival is getting closer and the Light Music club will be performing again... however, Mio and Ritsu get into an argument.

Azusa and Ui, along with their classmate Jun, spend time together while the third years are on their trip to Kyoto. Noticing that Ui would be lonely without her sister around, Jun and Azusa decide to sleepover at her house.

An exceptionally hot day launches a crusade to have air conditioning installed in the club room.

While the club room is closed for repairs, the girls have nowhere to practice. All is not lost, though, because the girls finally write lyrics to the music Tsumugi wrote.

The girls decide to record an album as an emblem of their time at the school.