__Height:__ 157 cm

Tsumugi Kotobuki, otherwise known as Mugi is one of the 5 main characters in K-ON! She is a wealthy, cheery, cute girl with a gentle personality who plays the keyboard and is the main musical composer in the band Ho-kago Tea Time.

Mugi plays a Korg Triton Extreme 76-key keyboard, though she is also seen playing a Korg RK-100 keytar in the closing credits of the first season. 

Hirasawa Yui, a young, carefree girl entering high school, has her imagination instantly captured when she sees a poster advertising the ‘Light Music Club’. Being the carefree girl that she is, she quickly signs up. However, Yui has a problem, she is unable to play an instrument. 
When Yui goes to the clubroom to explain, she's greeted by the other members: Ritsu, Mio and Tsumugi. Although disheartened at Yui’s lack of musical know-how, they still try to convince her to stay to prevent the club’s disbandment. After playing Yui a short piece which re-ignites her imagination, they succeed in keeping their new member and guitarist. 
Along with the tasks of school and homework, Yui begins to learn the guitar with the help of the other band members, experiencing many mishaps along the way. However, with the school-festival drawing near and Yui getting stuck with her practice, will the Light Music Club be ready in time for their debut? 
(Source: MAL Rewrite)

__Height:__ 158 cm  

[Website](https://www.kotobukiminako.com/) | [Blog](https://ameblo.jp/kotobukiminako-blog/) | [Youtube](https://www.youtube.com/channel/UC6jsWSIOVR4i6LAo9xKWptQ)

Member of seiyuu group [Sphere](https://anilist.co/staff/103636).

It is the new year, which means that the senior members of the Light Music Club are now third-years, with Azusa Nakano being the only second-year. The seniors soon realize that Azusa will be the only member left once they graduate and decide to recruit new members. Despite trying many methods of attracting underclassmen—handing out fliers, bringing people into the clubroom, and performing at the welcoming ceremony—there are no signs of anyone that plans to join.
 
While heading to the clubroom, Azusa overhears Yui Hirasawa say that the club is fine with only five people and that they can do many fun things together. Changing her mind, she decides that they do not need to recruit any members for the time being.
 
K-On!! revolves around the members of the Light Music Club as they experience their daily high school life. From rehearsing for concerts to just messing around, they are ready to make their last year together an exciting one!
 
(Source: MAL Rewrite)

With graduation right around the corner, every member of the Light Music Club except for Azusa will be leaving for good. But the girls aren’t going to let something as silly as graduation tear them apart! For their final hurrah, the girls are going on the ultimate vacation tour— all the way to London! Their overseas journey will lead them on a trip of discovery and friendship as they take the stage one last time for their final encore together. 
(Source: Sentai Filmworks)

When their high school's pop-music club is about to be disbanded due to lack of interest, four girls step up to fill the membership quota. Unfortunately, lead guitarist Yui Hirasawa has never played an instrument in her life. Ever. And although she likes the idea of being in a band, standing in front of the mirror posing with her guitar is a lot easier than actually playing it. It's gonna be a while before this motley crew is rocking out, but with their spunk and determination cranked to 11, anything is possible! 
(Source: Yen Press)

Ritsu's middle school friend invites the band to perform live on New Year's Eve. The girls get acquainted with other bands, and become a little nervous as the performance approaches. When the time comes, will they be able to rock the house? 

(Source: Hidive)

A special episode of K-ON!! released in the ninth volume of Blu-ray and DVD. The girls plan a trip abroad and go to the passport office to apply for passports.

Yui, Mio, Ritsu, and Tsumugi embark on their college adventures! It will take some time for the girls to get used to life away from their families and adjust to the pace of college life, but there's one aspect of their new situation that there's no uncertainty about-joining the pop music club! But they aren't the only high school band making their debut on the college scene. Is Afterschool Tea Time ready to perform alongside the hard-rocking rhythms of The Girlz?!
 
(Source: Yen Press)

As the only member of the pop music club not to graduate, the responsibility of recruiting new members has fallen to Azusa. Ui and Jun have agreed to help out their friend, but they might be more interested in having actual afterschool teatime than making music. Even when Azusa secures the necessary four members to keep the club alive, the lack of musical experience (and musical instruments) is going to be a challenge! Will the high school pop music club survive to take the stage once more?!
 
(Source: Yen Press)

Extra short anime Ura-On!! included in the limited edition of the K-ON!! Blu-ray.

The seven Blu-ray disc volumes of K-ON! have an extra short anime Ura-ON!.

There was once a high school band whose pop songs warmed and thrilled the hearts of all who listened. Now, three girls have been inspired to start a pop music club of their own, but will things turn out like they hope? It’s a new generation of slice-of-life hijinks from kakifly, the original author of K-ON! 
 
(Source: Yen Press)

An anthology comic of K-On! by various mangaka.
 
 Volume 1 (2009/11/27)
 #Cover illustration: Kokonoka (front), Hoppege (back)
 #Opening page illustration: Iwami Shoko
 #Color illustrations: Sou, Marimo, Shiba Yuusuke, Toto Nemigi, Murata Taichi, Kanikamo
 #Cover 4-koma: Toto Nemigi
 1. Tousen! (とうせん!) [Mikami Komata]
 2. Nyan-On (にゃんおん) [Kazuho]
 3. Naraku no Poem Master (奈落のポエムマスター, Poets from Hell) [Daioki]
 4. RitsuMio! Nodoka? (りつみお!のどか？) [Sakura Hanpen]
 5.Tsumugi Biyori (つむぎ日和, Tsumugi's Nice Day) [Bakutendou]
 6. We Are Crazy (We are crazy) [Hoppege]
 7. Sawanodo! (さわのど!) [Suzushiro Seri]
 8. W-box (W-box) [Lisalisa (リサリサ)]
 9. Yume no Scout Daisakusen (夢のスカウト大作戦, Operation Dream Scouting) [Araki Fuu]
 10. K-On! (けいおん!) [Shigatake (シガタケ)]
 11. Autamn Girls Sweet Home (AUTAMN GIRLS SWEET HOME) [ms]
 12. Azu-nyan (あずにゃん!, Azu-Nyan!) [Tamaoka Kagari]
 13. Satsugai! (さつがい!, Murder!) [Haruna Mao]
 14. Hirasawa-ke no Jijou (平沢家の事情, Hirasawa Family Circumstances) [Nonohara Chiki (野々原ちき)]
 
 Volume 2 (2010/4/27)
 1. Shinkyuu! Seitokaichous' (新旧! 生徒会長ズ, Former and Newly Elected Student Council Presidents) [Mikage]
 2. The Blues Sisters (The Blues Sisters) [Hoppege]
 3. Hallelujah! (はれるや!) [Harukaze Mika]
 4. Keion-bu Bushitsu Sounan Jiken (軽音部部室遭難事件) [Imusanjo]
 5. Teatime! (てぃーたいむ!) [Purapa]
 6. Girls' Talk! (ガールズトーク!) [Shima Tokio]
 7. Daini Keion-bu (だいにけいおんぶ, The Second Light Music Club) [kashmir]
 8. K-On kamo! (けいおんかも!, Maybe K-On!) [Arai Cherry]
 9. Azusa Keikaku (あずさ計画, Azusa's Plan) [Sakura Hanpen]
 10. Shamisen! (しゃみせん!) [Kobayashi Tetsuya]
 11. Un-Tan! (うんたん!) [Hara Yui]
 12. Trance! (とらんす!) [Neko Toufu (ねことうふ)]
 13. Fuefue Time (ふえふえタイム, Flute Blowing Time) [Kobayashi Tetsurou]
 
 Volume 3 (2010/8/26)
 1. Wasurenbo Daiou (わすれんぼ大王, Great Queen of Forgetfulness) [Iwami Shoko]
 2. Nodosawa♪ (のどさわ♪) [Suzushiro Seri]
 3. Sounan (そうなん!, Stranded!) [Komusou]
 4. Air (Air) [Konishi Aki]
 5. K-On! (げいﾞおﾞんﾞ!) [Tamaoki Benkyo]
 6. Bushitsu Ta---lk♪ (部室ト---ク♪, Club Room T-A-LK) [Purapa]
 7. Kai-On! (かいおん!, Ghost-ON!) [hajime]
 8. Gachi-On! (がちおん!) [Yoshimura Kana]
 9. Ui-chan Ganbaru! (ういちゃんガンバる!, Ui-chan Does Her Best!) [Gengorou]
 10. Ichinichi Buchou! (一日部長!, Club President for a Day!) [shige]
 11. Osoba wo Tabe ni Ikou (おそばを食べにいこう, Let's Go for Some Soba) [Nagumo.]
 12. Untitled [Iwami Shoko]
 13. Untitled [Tamaoka Kagari]
 14. Nodoka-cha~an!! (のどかちゃ～ん!!) [Serebi Ryousangata]
 15. Untitled [Moriki Takeshi]
 16. Untitled [Hashimoto Shin (はしもとしん)]
 17. Untitled [Chinjuu Moririn (珍獣モリリン)]
 18. Untitled [Miso Oden (みそおでん)]
 19. Untitled [Dasoku Sentarou (蛇足せんたろう)]
 
 Volume 4 (2011/5/27)
 1. Kakyuusei (下級生, Underclassmen) [Sakayama Shinta]
 2. Sayonara (さよなら, Good Bye!) [Hota.]
 3. Gozen 0-ji no Ricchan Keikaku (午前0時のりっちゃん計画, Ricchan's 12am Plan) [Mizu Asato]
 4. Teatime no Nai Houkago (ティータイムのない放課後, Afterschool Without Teatime) [Hiro]
 5. Dream Daisakusen (ドリーム大作戦, Operation Dream) [Rioshi (りおし)]
 6. Azu-nyan to Fushigi no Yui-senpai (あずにゃんとフシギの唯センパイ, Azu-Nyan and Mysterious Yui-senpai) [Yuzuki Gao]
 7. Buchou Azusa! (部長あずさ!, Club President Azusa!) [BeLL]
 8. Azussan [Shiba Yuusuke]
 9. Hirasawa Shimai no Karei naru Sakuryaku (平沢姉妹の華麗なる策略, Hirasawa Sisters' Magnificent Scheme) [Koi]
 10. Kenka suru hodo...? (ケンカするほど…？, …enough to get into fights?) [Mitsuki Meia (美月めいあ)]
 11. Untitled [Kito]
 12. Hanaji no Deyasui Keiongaku-bu (鼻血の出やすい軽音楽部, Nosebleed-Prone Light Music Club) [Kuroba (くろば)]
 13. Untitled [Haruna Mao]
 14. Untitled [Kobayashi Tetsurou]
 15. Nise Mugi (ニセムギ, Fake Mugi) [Imusanjo]
 16. Gakki-ya no Anchan no (Baku) (楽器屋のあんちゃんの（爆）, LMAO of An-chan the Music Store Clerk) [Shirayuki Shion (白雪しおん)]
 17. Untitled [Sanada Ikki]
 18. Enujo! (えぬじょ!, JWU!) [Mikage]
 
 Volume 5 (2011/9/27)
 1. bankago wa tsuzuku yo (版 課 後は続くよ, The Afterschool Goes On!) [Hara Yui]
 2. hōkago mirufui - yujikan (放 課 後 ミ ル フ ィ ー ユ 時 間, Afterschool Mille-feuille Time) [Tachi]
 3. unknown (unknown, Go What Go What!?) [Nishiuri Warito]
 4. Nichiyōbi! (にちようび!, Sunday) [Yatosaki Haru]
 5. unknown (unknown, Guitar With You) [Kinniku Tarou]
 6. unknown (unknown, No Club Can Beat The Light Music Club!!) [Arata Iri]
 7. hōkagogoto kenbo (放 課 後 事 件 簿, Afterschool Case File) [Take Shinobu]
 8. unknown (unknown, Flying Azusa) [Kounosu Satori]
 9. ousamaaisu (お う さ ま ア イ ス, King’s Ice Cream) [Usume Shirou]
 10. unknown (unknown, Yui’s Holiday) [Kanikama]
 11. azusa no hitori de yatteyaru desu (梓のひとりでやってやるです！, Azusa’s “I’ll do it by myself”) [Matsuda Shima]
 12. azu no ongaeshi (あずのおんがえし, Azu Returns The Favor) [Kamonari]
 13. imouto! (いもうと！, Little Sister) [Nozomi]