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K-OFF! ON!!!

TitleK-OFF! ON!!!
LengthVery short (< 2 hours)
Shares characters
[unofficial] 10-nin Yaru! -Ikan ni Shite So*be Sen...
[unofficial] K-ON Galge!? -Mio to Yui-
[unofficial] K-ON! Houkago Inbi Chouritsu
[unofficial] Mio Aji!
[unofficial] Mio-chan to A-so-bo
Related anime[DB-ANN] K-On! (TV Series, 2009)
[DB-ANN] K-On!! (TV Series, 2010)


A parodious game using K-ON! characters.
Well, with a lot of anime references.


Hirasawa Yui平沢 唯O
MeasurementsHeight: 156cm, Weight: 50kg
Birthday27 November
HairBrown, Parted to Side, Short
EyesBrown, Tareme
BodyAverage Height, Pale, Slim, Teen
ClothesHairpin, Miniskirt, Pantyhose, Ribbon Tie
ItemsElectric Guitar
PersonalityAirhead, Carefree, Clumsy, Food Lover, Hardworker, Immature, Watashi
RoleFull Sister, Guitarist, High School Student, Musician, Older Sister, Popular, School Music Club Member, Singer
Engages inSinging, Teasing


Yui is one of the members of the light music club and plays a Heritage Cherry Sunburst Gibson Les Paul Standard electric guitar that she nicknames "Gita" (ギー太, Gīta). She does not get good grades in school (though when properly coached, she can achieve astounding results) and is easily distracted by trivialities (mainly those deemed cute and adorable). Yui is clumsy and easily spaces out most of the time. She takes a huge liking for any kind of food (though she never gains weight, which is greatly envied by Mugi, Mio, and Sawako). She has a younger sister named Ui, who is very mature and acts as the "older sister" of Yui, taking care of her and keeping her in line. During performances, Yui plays with amazing energy and joy, which usually results in great response from the audience.
Yui is the band's main vocalist and lead guitarist and has absolute pitch—she can tune her guitar perfectly without a tuner, which greatly impresses Azusa, who has played the guitar much longer than Yui. She has a very easy-going nature, but has incredible focus and retention when she has a clear goal in sight; unfortunately this is limited to only one subject at a time, and her other skills deteriorate quickly (for example, Yui is at one point pressed to make up failing test scores, and she quickly brings her math skills up to par while allowing her guitar skills to deteriorate.) Despite all of this, Yui is still devoted to her band and will always practice hard enough for the club. At school, she has become quite admired for her great voice. However, she is known to forget her lyrics in mid-performance as well as overdoing things, making her unable to perform sometimes. Mio was the lead vocalist at first, since Yui could not play the guitar and sing at the same time. Yui is also known to write childish lyrics as Ui has assisted her in creating them.

[From Wikipedia]

Main characters

Akiyama Mio秋山 澪A
MeasurementsHeight: 160cm, Weight: 54kg
Birthday15 January
HairBlack, Blunt Bangs, Hime Cut, Long, Sidehair, Waist Length+
EyesBlue, Tsurime
BodyAverage Height, Left Handed, Pale, Slim, Teen
ClothesKnee-high Socks, Miniskirt, Ribbon Tie, School Uniform, Shimapan
ItemsBass Guitar
PersonalityMature, Serious, Shy, Watashi
RoleBassist, Childhood Friend, High School Student, Honor Student, Musician, School Music Club Member, Singer
Engages inSinging
Subject ofTeasing


Mio is a shy girl who is in the light music club. She plays a left-handed, 3-Color Sunburst Fender Jazz Bass with a tortoiseshell pickguard, though is shown playing a Fender Precision Bass in the first manga volume. While she originally intended to join the literary club, she was forced into the light music club by her childhood friend and the club's president/drummer, Ritsu.

She gets excellent grades in school and is often mature and strict especially where Ritsu is involved; her weakness is the macabre and horrific, and she is often incapacitated with fear when stories involving ghosts, blood, injuries, haunted houses, barnacles or other disturbing topics come up. She also has a fear of being in the spotlight and gets embarrassed easily, and is often subject to teasing from Ritsu and Sawako, their club adviser.

She cites that she chose bass since it is not the center of attention in the band, unlike the guitarist. Mio is more technical when it comes to music, and Yui often comes to her when she is in need of more guitar tutorials. Mio is the second vocalist of the band, though given her dislike of being center stage, she tries to avoid taking the lead vocal if possible, generally singing if Yui is unable to. She writes most of the songs, although they usually feature some odd and overly girlish lyrics like "Light and Fluffy Time". As she is left-handed, she becomes entranced whenever she sees left-handed instruments, because of their rarity.

[From Wikipedia.]

Kotobuki Tsumugi琴吹 紬O
AliasesMugi, ムギ, Mugi-chan, ムギちゃん, Mugi-senpai, ムギ先輩
MeasurementsHeight: 157cm, Weight: 53kg
Birthday2 July
HairBlond, Sidehair, Spiky Bangs, Thick Eyebrows, Waist Length+
EyesBlue, Tareme
BodyAverage Height, Pale, Slim, Teen
ClothesMiniskirt, Ribbon Tie, School Uniform
PersonalityCurious, Docile, Ignorant, Kind, Mature, Refined
RoleHigh School Student, Keyboardist, Musician, Pianist, School Music Club Member, Wealthy


Tsumugi, often referred to as 'Mugi' by her friends, is a wealthy girl with a gentle and sweet personality who plays a Korg Triton Extreme 76-key keyboard. She originally intended to join the choir club, but joins the light music club instead after receiving an invitation and encouragement from both Mio and Ritsu. Tsumugi is considered a piano prodigy since she has been playing the piano since she was four and has experience in winning various piano contests. Tsumugi has written several songs for the light music club, as well as singing the back vocals in several other songs. She is a good student and has long, pale blonde hair, blue eyes, unusually large eyebrows, which apparently run in her family and a fair complexion that the other characters do not have, but she does not get sunburned.

She is the daughter of a company president, and her family has several villas in various places around Japan (and even one in Finland). Since her father also owns a maid café, she often brings confectionery and an assortment of sweets and pastries to the club room, and she diligently makes tea with a tea set which is kept in their club room. Despite her wealth, she is fascinated by and finds joy in "normal" activities, such as ordering fast food, sharing french fries with her club mates, holding down part-time jobs and haggling over prices. Tsumugi displays a rebellious streak occasionally, diverting from her normally well-behaved and mature demeanor to the surprise of the others. She also displays a childlike eagerness from time to time, and possesses unusually high strength, being able to effortlessly carry around her own keyboard, Ritsu's drums, amplifiers, and at one point beating an arm-wrestling game in an arcade.
Tsumugi is often entranced by the sight of two girls interacting closely together, sometimes imagining something more risqué in her head. While a lot of things do not bother her, she is fairly conscious about her weight (just like Mio).

[From Wikipedia.]

Nakano Azusa中野 梓AB
AliasesAzu-Nyan, あずにゃん, Azusa-Chan
MeasurementsHeight: 150cm, Weight: 46kg
Birthday11 November
HairBlack, Long, Sidehair, Spiky Bangs, Twin Tails, V Bangs
EyesHazel, Tareme
BodyAverage Height, Kid, Olive, Pale, Slim, Small Breasts, Tanline
ClothesKemonomimi Headband, Knee-high Socks, Miniskirt, One Piece Swimsuit, Ribbon Tie, School Uniform
ItemsElectric Guitar
PersonalitySerious, Tsundere
RoleGuitarist, High School Student, Kouhai, Musician, School Music Club Member
Subject ofTeasing


Azusa is a student in the same year and class as Yui's sister Ui, who joins the light music club and becomes the rhythm guitarist, playing a Fender Mustang electric guitar. She is a self-proclaimed novice guitarist who has been playing the guitar since she was in the fourth grade. She is more serious than the other girls, and does not like to admit how she really feels. She often finds herself bewildered by the tea parties and cosplaying aspects of the club, when she would rather just practice, and is curious about how the club is able to play so well despite their problems and lack of practice. However, she has a certain weakness for cakes and can be calmed down rather easily, sometimes by just being petted. She is constantly a victim of Yui's skinship and is nicknamed 'Azu-nyan' after trying on a pair of cat ears and meowing. Despite this, Azusa is not too good with cats. While Azusa is talented in guitar, she has trouble singing while playing unlike Yui and Mio.

In the band, she looks up to Mio the most due to her maturity and the fact that she is an experienced bassist. However, she sometimes unintentionally makes remarks concerning Mio's weaknesses, such as her weight. She also finds Mugi very beautiful, and envies her hair and large eyes, and later starts teaching her how to play guitar when the two are alone in the club room. Since joining, Yui comes to her for advice on playing guitar, as well as maintenance.
She gets a tan extremely easily, once during their time at the beach and another during a music festival (even after applying sunscreen). As a result, she frequently gets sunburned as well. She gets lonely very easily, and often worries that everyone in the club will leave her, as they are one year older and eventually will graduate. Outside of the band, she often hangs out with Ui and Jun whenever the other girls are busy.

[From Wikipedia.

Tainaka Ritsu田井中 律B
AliasesRitchan, りっちゃん
MeasurementsHeight: 154cm, Weight: 48kg
Birthday21 August
HairBrown, No Bangs, Short, Sidehair
EyesAmber, Tareme
BodyAverage Height, Pale, Slim, Teen
ClothesAnkle Socks, Headband, Miniskirt, Ribbon Tie, School Uniform
PersonalityCarefree, Energetic, Jealous, Lazy, Outgoing, Tomboy, Watashi
RoleChildhood Friend, Drummer, Full Sister, High School Student, Musician, Older Sister, School Band Leader, Student Club President
Engages inSarcasm, Teasing


Ritsu (or Ritchan, as nicknamed by Yui) is the self-proclaimed president of the light music club and plays a yellow Rick Marotta Signature Yamaha Hipgig drum kit combined with a cymbal set from Avedis Zildjian. She has an ambiguous yet upbeat personality, much like Yui, but often has trouble remembering important club activities and announcements and gets constantly rebuked by Mio and Nodoka[ for forgetting to send in important forms concerning the club. Ritsu is cheerful, often likes making jokes and is sarcastic most of the time. She is skilled at brainstorming ideas that earn money for the club. She usually wears her school jacket open. She says she chose to play the drums because they are "cool", but later admits that she has trouble playing instruments which involve intricate finger movements, such as the bass, guitar and keyboard.
She is Mio's childhood friend and will often take the opportunity to tease her whenever Mio is cowering from something. She is also known to become easily jealous of Mio's other high school friends, even going as far as spying on Mio when on outings with them. Ritsu is always on the go and will stop at nothing for the success of the light music club. She is skilled at cooking. She has a younger brother named Satoshi.

[From Wikipedia.]