K-On! (けいおん! ,Keion!?) is a Japanese four-panel comic strip manga written and illustrated by Kakifly. The manga started serialization in Houbunsha's seinen manga magazine Manga Time Kirara since the May 2007 issue, and also started a bimonthly serialization in Houbunsha's magazine Manga Time Kirara Carat since the October 2008 issue. An anime adaptation produced by Kyoto Animation began airing in Japan on April 3, 2009. The title of the series comes from the Japanese word for light music, keiongaku (軽音楽 ?).
K-On!'s story revolves around four Japanese high school girls who join their school's light music club to try to save it from being abolished. However, they are the only members of the club, and at first Yui Hirasawa has no experience playing musical instruments or reading sheet music.
Producers: Kakifly, Yamada Hisako, Yoshida Reiko, Horiguchi Yukiko, Hyakkoku Hajime, Kyoto Animation
This is the first year of high school for the four girls, looking for that very special club.
The healthy and energetic Tainaka Ritsu (club president, drums) decides to join the school's Light Music Club, only to find out that the club is about to be closed — due to the lack of members. Without much ado she drags along her childhood friend, the shy, mature, and sensitive Akiyama Mio (bass). That leaves only two more members, required to keep club from closing. Luckily the gentle, calm, warm, and cute Kotobuki Tsumugi (keyboard) stumbles into the club, only to be "convinced" by the pleading Ritsu to stay. The last member, the easily distracted klutz Hirasawa Yui, can only play castanets, even though the club needs someone on the guitar, but she is "bribed" — with cake — to stay anyway.
Will Yui be able to learn to play the guitar — the special one she just bought and loves so much — before the four girls graduate?