The first season of the K-ON! anime television series aired in Japan, bringing the series to a wider audience.
The second season of the K-ON! anime television series aired, continuing the story and increasing popularity.
The theatrical animated film K-ON! The Movie was released in Japan, expanding the franchise further.
Yui Hirasawa, a first-year high school student, joins the Light Music Club at Sakuragaoka High School despite having no experience playing instruments.
The Light Music Club holds its first practice session with Yui on guitar, Mio on bass, Ritsu on drums, and Tsumugi on keyboard, forming the core band members.
Azusa Nakano, a diligent and skilled guitarist from the year below, joins the Light Music Club to strengthen the band.
The Light Music Club performs at the school's cultural festival, marking their first public performance together and gaining recognition.
The club organizes a summer camp and holds a small concert that helps deepen the friendship among the members.
Yui begins learning how to read music to improve her guitar skills after feedback from Azusa.
The senior members start discussing their future and the possibility of continuing the band after graduation.
The Light Music Club performs a final concert at the school to commemorate their time together before graduation.
