K-On!

Spring. As new students are deciding what club to join, Ritsu Tainaka takes her childhood friend, Mio Akiyama, along with her to observe the light music club. But all the members of the light music club have graduated, and the club will be disbanded unless four new members can be assembled. They add Tsumugi Kotobuki, who had come to observe the choir, to their ranks and as they search for one final member...

The light music club members help Yui purchase a guitar. With a ¥50,000 advance on her allowance, Yui goes to a music store where an expensive Gibson Les Paul catches her eye, but is way out of her budget. In order to make enough money, the girls decide to get part-time jobs to help their new member purchase the guitar.

Yui and the girls are now taking their midterms. Unfortunately, Yui practices playing her guitar chords instead of studying, and so she fails the exams. If she fails the retest, she cannot participate in club activities, and the club will be disbanded due to lack of members. The club is determined to help Yui study her best or risk disbanding.

Mio discovers a box filled with artefacts from a previous Light Music Club including a tape of a performance at the school festival. This encourages her to have the club go on a training camp at Mugi’s personal summer house. But can the girls concentrate with all the distractions?

When Tsumugi's application to reserve the hall for the light music club is rejected due to it not officially being a club, it becomes apparent Ritsu had forgotten to fill out the required form. The student council offers to register them, but say they will need an advisor. Will the girls be able to find someone in time?

On the day of the school festival, Mio wants to practice for the club's live event, but everyone else is helping with their classes' other stands. They later get some practice done, but Mio is still nervous about singing center stage, even with Sawako's costume choices not helping the matter.