K-ON! episode #1
Yui Hirasawa, a new high school student, wonders if she should join a club or not. Meanwhile, Ritsu Tainaka is trying to revive the school's Light Music Club. Ritsu's childhood friend, Mio Akiyama wonders what club to join. Tsumugi Kotobuki runs into Ritsu while looking for the chorus club. Ritsu finds that she must get at least four members to join to save the club from being disbanded.
Yui Hirasawa is waked up by her sister Ui Hirasawa and panickly thinks she overslept on her first day of high school. She rushes towards the school, but realises she just got the time wrong after arriving. Sitting in the auditorium with the other first-year students, she elatedly thinks about being an high school student now.
During the next days, she seriously considers joining a school club. When she tells her childhood friend and classmate Nodoka Manabe about it, she got scolded by her since two weeks already passed by and she could still not make a decision. Cluelessly, Yui thinks about her needing something to do already.
Running parallel, Ritsu Tainaka and Mio Akiyama ask their teacher Sawako Yamanaka about the Light Music Club they are about to re-establish, just to learn that they need at least two more members to save the club from being disbanded. Both meet Yui afterwards for the first time, having a low image about her because she appeares to be very awkward in front of them.
Visiting the music room, Ritsu and Mio wait for a third member to join. After some time, just when Mio is about to give up, Tsumugi Kotobuki shows up searching for the chorus club. Ritsu, excited about a possible member, tries to drag her into their club, just to be stopped by Mio. She prepares to leave, but Ritsu reminds her at the promise they made after visiting a concert together. Her flashback turns out to be false however, since they made their promise in front of a TV and Mio was always a bit unmotivated to actually found a band. Surprisingly, Tsumugi thinks about the two being fun people, so she joins the club as well.
All the three now need is a fourth member and they come up with several methods to gather new members, like a recruitment poster. Yui sees said poster and joins the club.
On her first way to the clubroom, Yui gets very nervous since she has no experience in playing an instrument and prepares to officially leave the club right away. Seeing the other member's bliss about her saving the club's existence however extremely complicates things for her and the attempts to have her stay in the club finally makes her cry out of shame about herself. Ritsu, Mio and Tsumugi feel bad about their selfish methods and apologise to Yui by playing "Tsubasa wo Kudasai" for her. Overwhelemd by the performance, Yui joins the club for real.
In the last scene, Yui talks with Nodoka about joining, leading the latter to be very worried about the club's future.