Plot
| - thumb|left|Yui's first day at high school
Yui is woken up by her sister Ui and panickly thinks she overslept on her first day of high school. She rushes towards the school, but realizes 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.
thumb|right|Yui is clueless about what to do
During the next days, she seriously considers joining a school club. When she tells her childhood friend and classmate Nodoka 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.
thumb|left|Mio's, Ritsu's and Yui's first encounter
Running parallel, Ritsu and Mio 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 appears to be very awkward in front of them.
thumb|right|Tsumugi joins the club
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 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.
thumb|left|Mio, Ritsu and Mugi discussing methods to get more members
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.
thumb|right|Mio, Ritsu and Mugi trying to convince Yui to stay
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. Overwhelmed by the performance, Yui joins the club for real.
thumb|left|The club playing for Yui
In the last scene, Yui talks with Nodoka about joining, leading the latter to be very worried about the club's future.
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