Mio Akiyama name icon
Yui Icon Ritsu Icon Mio Icon Tsumugi Icon Azusa Icon

Mio Akiyama

Mio Akiyama new mugshot

Mio manga

First Appearance
Manga Debut Volume 1, Chapter 0
Anime Debut Season 1, Episode 1: Disband the Club!
Other Appearances
Videogames K-ON!! Ho-Kago Live!
Stages K-ON!! Let's Go! Live
Movies K-ON! Movie
Voice Provider
Japanese Yōko Hikasa
English Cristina Valenzuela
Korean So Ra Park
German Anita Hopt
Chinese Qian Xin You
Also Known As Mio-chan
Age 15-18
Birthday January 15, 1992
Class Elementary School
Senior High School
Musical Profile
Role Bassist
Backup Vocalist
Main Lyric Composer
Instrument Bass Guitar
Fender Japan '62 Reissue Jazz Bass in 3-Tone Sunburst (Left-Handed); named "Elizabass"

Manga only: Fender Precision Bass in 3-Tone Sunburst (Left-Handed)
Gender Female
Height 160 cm
Weight 54 kg
Hair Black
Eyes Grey
Blood Type A

Mio Akiyama is one of the 5 main characters in K-ON!. She is the mature but scaredy-cat bassist, and second vocalist of the band Ho-kago Tea Time.

Her voice providers are Yōko Hikasa (Japanese) and Cristina Valenzuela (English).


Mio is the bass player of the Light Music Club. She acts mature, calm, and collected most of the time. An example is being the older sister figure to Azusa Nakano.

However, she freaks out around things she's afraid of, are gross, or pertain to gore. She is a tsundere towards Ritsu Tainaka often, due to Ritsu's immaturity. Because of her extreme shyness, she chose the bass over the more conspicuous guitar. She is so delicate that merely imagining herself being the center of attention almost makes her faint, but she still plays the bass quite well. She is kind and warm with others, caring about her friends, and knows they are important to her. As well as being shy, she is easily scared by barnacles, gory stories, and injuries involving blood.

Although she is not altogether uninterested in joining a band outside school, the time she spends with the Light Music Club members is the time she enjoys the most, so she has completely devoted herself to the club, and during the school festival performance in the fall of her first high school year, she acted as lead vocalist instead of Yui Hirasawa, who had lost her voice. At the time it seemed like Mio might have overcome her stage fright, but after the performance ended, she tripped over a cord and fell, exposing her panties, and was traumatized once again.


Mio stands at 5'3" (160cm), being the tallest in the group and has straight, long, black hair and gray-blue eyes. As shown in episode 4 of season 1, she is also quite a bit more busty than the others (except Tsumugi Kotobuki), much to the dismay of Yui Hirasawa, Ritsu Tainaka and later Azusa Nakano as well.

Attires Edit

Pants over skirts. In summertime, Mio likes to wear sleeveless clothes, such as tank tops.

Sakuragaoka High School uniform Edit

Mio akiyama Like all Sakuragaoka High School students, Mio wears a school uniform. The Sakuragaoka uniform consists of a navy blue blazer, a solid white buttoned shirt (under the blazer), a colored ribbon (different colors for different student years, Mio's year is light blue), a light steel blue skirt, stockings or socks (Mio's are black), and maroon shoes. The summer uniform replaces the blazer with a beige waistcoat. Additionally, the subject physical education requires a tracksuit (sport jacket with long pants, colored again depending on the year group) with white striped brims, a white shirt with colored endings (again colored regarding the year group) for the summer semester and white sports shoes.

"Don't say 'lazy'" Attire Edit

Mio Dont Say Lazy attire Mio's "Don't say 'lazy'" consists of a wide black dress with ruchings on the inside. She wears turquoise tights; her right arm is covered with an arm glove in the same color and black stripes on it. She also wears a pair of black high heeled shoes and a tiny black tophat with a red stripe. Additionally, she carries a short brown cane.

"Listen!!" Attire Edit

Mio Listen In "Listen!!", Mio wears a long violet shirt with a yellow and a red triangle and the writing "rhythm" on it. The shirt does not cover her left shoulder and is covered by a black belt over her hip. She wears a black shirt under her violet one. She also wears red tights and brown boots. Her left hand is covered with a black glove. She is wearing a red ribbon on the right side on her head.

"NO, Thank You!" Attire Edit

Mio NO, Thank You! 1 In "NO, Thank You!, Mio's attire is similar to any school uniform dress code, except that she is wearing a violet hoodie over it, alongside a large red disorderly tie. Her attire is similar to the Sakuragaoka High School uniform - navy blue blazer and a white buttoned shirt (under the blazer). The only parts different are the mentioned tie, dark blue socks, a plaid dark blue skirt and her pink shoes.
Mio NO, Thank You! 2 Mio's second attire in "NO, Thank You!". She wears a plain white shirt that goes down over her hips and a violet hoodie over it. She also wears pink tights, rosy gloves and a dark grey belt.

"Singing" Attire Edit

Mio Singing attire 1 Mio's "Singing" attire. Like the rest of the band, she wears a light blue one-piece dress over a white shirt. The skirt goes down to her knees. The dress has four white dots over the chest, a white bow and a white collar. Mio additionally wears black shoes with white shoelaces over long white socks, which have red and blue stripes on them. Her hair is tied to two braids that are decorated with white bows at the tips.
Mio Singing attire 2 Mio's second attire in "Singing". She wears a pale pink one-piece dress with a bow attached to it under a green winter jacket with a fur collar. She also wears brown shoes with white straps.

Etymology Edit

  • The name Mio means "water route, shipping channel" (澪).
  • Mio's surname Akiyama means "autumn" (秋) (aki) and "mountain, hill" (山) (yama).

Other Content Edit

Character Image Songs

K-ON! CISS Volume 2 Mio K-ON!! Character Image Songs Mio
K-ON! Character Image Song Series Vol. 2: Mio Akiyama K-ON!! Character Image Songs: Mio Akiyama
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