Yui, Mio, Ritsu, and Tsumugi are all in the same class and members of the same music club. They want to bring in more members so their friend Azusa won't be the club's only member once they all graduate.
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.
While filling in University Choice forms, Yui and Ritsu get in trouble for not being decisive enough about their future. Nodoka tells the others about how Yui became friends with her after they met in kindergarten.