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Masaoka Azuki‎ VOCALOID2 VOCALOID4 | Songs Albums Notable Originals

Masaoka Azuki (正岡小豆) is a Japanese VOCALOID developed and distributed by YAMAHA Corporation in collaboration with SEGA. She made her debut as a main character in Project 575 and utilized the VOCALOID2 engine. She was released for the VOCALOID4 engine in July 2017.

She is voiced by Yuka Outsubo, a professional voice actress and singer.



Masaoka Azuki's name refers to a type of bean characterized by its red coloration, making reference to her overall color scheme and hair color.

For her VOCALOID4 release, her first name is rendered in hiragana (あずき).


Azuki was illustrated by Hiro Kanzaki, thus having a moe style with rounded features that are characteristic of the illustrator's style. She has red hair tied in a bun or chignon held by an exotic floral hair tie. Due to her background within the game, she is usually depicted in casual or school-related outfits.

In her VOCALOID4 illustration, she has a more idol-like appearance, wearing a white sleeveless top with matching long gloves and boots and a reddish pink skirt with a frilly trim, with a matching ribbon on her back. There are also small ribbons on her chest, gloves, and on both the tops and bottoms of her boots. A black letter A is visible on her top in her waist area.

Official profile[]

Her birthday is June 11, she's a Gemini, and her blood type is O.[1] Azuki is described as being cheerful and positive unlike Matcha. She's very open towards her feelings and tends to act first and think later.

In Go! Go! 575!, she is made out to be an awfully forgetful but eccentric person and somewhat impatient. She is also affectionate, effusive, and "clingy" (according to Matcha), often showing exaggerated displays of affection. She is shown to be scared of kites and would cower behind Matcha whenever one appears. Azuki also seems to be fond of food as she often suggests that they go to cafes, and even suggested they sing about hotcakes. Both she and Matcha seem to be oblivious to Yuzu's "fantasies" of the two.


For more on VOCALOID relationships, see the FAQ.



Masaoka Azuki and Kobayashi Matcha were featured in Utayomi 575, the first iOS app to feature their VOCALOID2 voicebanks. They later appeared in the PS Vita game Uta Kumi 575 and the anime project GO! GO! 575. However, these vocals were not commercialized and were restricted to the games only. They did not see a public release until July 2017 for the VOCALOID4 engine.


Masaoka Azuki
A calm and powerful female vocal and the counter-partner to Kobayashi Matcha.


Misc. versions
A earlier "lite" version of the vocal was released for VOCALOID2, this is featured in the game Uta Kumi 575.

Music featuring Masaoka Azuki[]

  • On this wiki, Masaoka Azuki is featured in 16 songs , 2 albums .
Azuki logo.png
ice cream chaos
YouTube logo
Translation ice cream chaos
Masaoka Azuki
Black Shock Box (music, lyrics), ysso (illust)
Categories Original Song
YouTube logo
Translation ~Dochira no Aisu ga Osuki?~
Masaoka Azuki, Kobayashi Matcha
Categories Original Song
YouTube logo
Translation Gimmick
Masaoka Azuki, Kobayashi Matcha
*Luna (music, lyrics), Bibi (tuning), Haluo (mix), Yayaya (illust), Kaito (video)
Categories Original Song
YouTube logo
Masaoka Azuki
Categories Original Song
Search for music featuring Masaoka Azuki [show/hide]



Google Trends


  • One of the first VOCALOIDs to convert from private usage to commercial release.
  • One of the first SEGA VOCALOIDs


  1. Project 575 - Introduction

External links[]

Language Description Site
Japanese Project 575 official homepage Link
Japanese project575 The official Facebook page for Project 575 Link
Japanese project575(公式) @project575 The official Twitter account for Project 575 Link
Japanese Project 575チャンネル The official NicoVideo channel for Project 575 Link
Japanese GO!GO!575 The official NicoVideo channel for Project 575 Link
English deviantArt , art and media community Link
Japanese Pixiv , art and media community Link