Masaoka Azuki (正岡小豆) is 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.



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.


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.


Music featuring Masaoka AzukiEdit

  • Masaoka Azuki is featured in 10 songs and 0 albums on this wiki.
    Azuki logo
  • There are listings for notable, original, and cover songs.

Examples of usage

ice cream chaos
Romaji/English ice cream chaos
Featuring Masaoka Azuki
Producers Black Shock Box (music, lyrics), ysso (illust)
Category Original song
Romaji/English ~Dochira no Aisu ga Osuki?~ (~Which Ice Cream do you Like?~)
Featuring Masaoka Azuki, Kobayashi Matcha
Producers Lunaria
Category Original song
Masaoka Azuki!
Featuring Masaoka Azuki
Category song
Masaoka Azuki!
Featuring Masaoka Azuki
Category song
Search for music featuring Masaoka Azuki [show/hide]


Do you like Masaoka Azuki?

The poll was created at 00:14 on November 20, 2015, and so far 156 people voted.
What characteristic of Masaoka Azuki do you like?

The poll was created at 00:14 on November 20, 2015, and so far 125 people voted.

Additional InformationEdit


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.

See also: Masaoka Azuki/Marketing and VOCALOID in other media



Masaoka Azuki's character status
  • One of the first VOCALOIDs to convert from private usage to commercial release.
  • One of the first SEGA VOCALOIDs


575 Azuki Uniform
The image gallery for Masaoka Azuki may be viewed here.


  1. Project 575 - Introduction

External linksEdit

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

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