Vocaloid Wiki

KAITO VOCALOID1 VOCALOID3 | Piapro Studio | Songs Albums Notable Originals

KAITO (カイト) is a Japanese VOCALOID developed originally by Yamaha Corporation and distributed by Crypton Future Media, Inc.. He was one of the 4 known "Project Daisy" vocals. His VOCALOID3 update was developed and distributed by Crypton. He was initially released in February 2006 for the first VOCALOID engine. There has since been a second installment developed for the VOCALOID3 engine dubbed KAITO V3. His voice is provided by the famous Japanese singer, Naoto Fūga (風雅なおと).

As of August 31, 2019, there will be no further installments with the VOCALOID program. Instead Crypton is focusing on their own program, Piapro Studio.[1][2]



The product's name was invited to be chosen by the public, and "KAITO" was selected from among the applicants, which was Shu-tP's offered idea.[3][4] One of the reasons why his name "KAITO" was selected was because it would be easy for non-Japanese speakers to pronounce, and it looked fitting with the name "MEIKO" when they were put next to one another.[5]

KAITO's codename was "TARO";[6] it likely came from "Yamada Tarō (山田太郎)", a placeholder name for male characters and the Japanese equivalent to "John Smith".

KAITO is often mistakenly called "Kaito Shion" or "Shion Kaito", particularly by overseas fans. "Shion" was a fan-created term used to refer to him during the 2007-2009 period. Due to its common sighting, it is still incorrectly used by fans as his family name even as of the most recent VOCALOID engine release. Officially, the character is known just as "KAITO"; he has no family name or surname.


The illustration was done by Takashi Kawasaki. Crypton did not set his character and profile except for his package design. Like MEIKO, he was not made with the aim of giving character or personality to vocal synthesis software.[7][8] This was also emphasized during the development of the V3 vocal banks, with Wat stating how different the intention of the CV series was to the intention of KAITO and MEIKO. This led to the updates taking a totally different course of development in comparison to the Appends of Miku, Len, Rin and Luka.

KAITO's muffler has become one of his most iconic items. During his V3 update, there was fan outcry over the idea of it being made transparent. In answer to this, Crypton stated that cloth can be made out of anything, including plastic; there was a lot more freedom with it than many realized.[9]

KAITO has no official given age. In one doujinshi, Maker Hikoushiki Hatsune Mix he is portrayed as a middle aged man by KEI, but it should be noted that what the artist depicts in the comic is not official, as he mentioned in a magazine interview.[10] A common myth within the fandom is that KAITO was intended to be middle aged, which may have generated from this fan comic. KAITO has never been officially depicted as any specific age bracket.

Because of the story of his rediscovery in 2008, KAITO was often depicted with ice cream. This gave birth to the "Item War" Internet Meme tradition.


For more on VOCALOID relationships, see the FAQ.

  • MEIKO - A complementary voice bank with feminine vocals.



The original release of both MEIKO and himself was noted for their lack of marketing. Aside from a DTM MAGAZINE article, he appeared in the April 2006 issue[11], he had no other marketing as attention turned to VOCALOID2 in early 2007. At the time, VOCALOID was not expecting much in the way of sales. The prospect of MEIKO and MEIKO receiving updates being impossible post-VOCALOID and it was expected that Hatsune Miku would take over their roles going into VOCALOID2. Due to the state of the market VOCALOID was being released into at the time, there was no plan to update the pair and VOCALOID2 was expected to see a similar fate to VOCALOID.[12]

Despite this, the act of putting a character on the boxart was popular, though the image was not of KAITO originally. The act of putting a character on the boxart was carried over to following VOCALOIDs to encourage creative activities by individuals, expanding the characters based on each user's individual needs.[13][14][15]

Some focus was given to the older engine, but only after VOCALOID2 had gained popularity, with basics such as tutorials produced where there was once not anything at all.

KAITO's V3 release repeats many aspects of what made the CV series popular, and he was already due a series of "beginners guides" in magazines such as DTM before release.


The following covers the VOCALOID software, for future releases see Piapro Studio releases.

KAITO - Straight
The Original voicebank is based on a professional singer. It was a male Japanese vocal that leaned towards genres such as jazz, but due to its high compatibility with the original VOCALOID engine, was easily adaptable to many other genres of music. When KAITO was updated, the voicebank had to be completely re-done with a similar tone to the original, thus some aspects of the vocal have changed in consequential versions. The vocal was also a counter-partner to the MEIKO "Straight" vocal originally.
KAITO - Soft
A vocal based on the "Straight" vocal with looser pronunciations, it is a natural sounding tone change.
  • KAITO V3 (VOCALOID3, Piapro Studio), February 15, 2013
KAITO - Whisper
A whisper-like toned voicebank much softer than "Soft" and a natural tone change.
  • KAITO V3 (VOCALOID3, Piapro Studio), February 15, 2013
KAITO - English
The English version of the voice.
  • KAITO V3 (VOCALOID3, Piapro Studio), February 15, 2013
Other voicebanks
He was due a "KAITO Append" for VOCALOID2, details of this remain vague.
KAITO "Light" was mentioned.[16]

Music featuring KAITO

  • On this wiki, KAITO is featured in 382 songs , 244 albums , 25 series , 40 events.
YouTube logo
Translation Jougen no Tsuki
Kurousa-P (music, lyrics), Ittomaru (illust), gram6design (video)
Categories Original song
YouTube logo
Translation 1/4
CircusP (composition, arrangement), Sleppu (illust), nostraightanswer (video)
Categories Original song
Translation FLOWER TAIL
yuukiss (music, lyrics, video), Umu (illust), Sacrow (logo)
Categories Original song
Translation Old Radio
Urara-P (music, lyrics), Piihyara-P (tuning), gindara (illust)
Categories Original song
Search for music featuring KAITO [show/hide]



Google Trends



KAITO's rise to fame is often considered a matter of luck, since KAITO was "a commercial failure" when he was first released. He sold only 500 units in his first year,[17] in which he needed to sell 1,000+ units to be considered "successful". After this failure, 100 units were sold in Jan 2008; then this amount began to rise rapidly. By June 18, 2008, KAITO was reported to have now sold an additional 1,000 units, twice as much as his initial sales. This shocked the Vocaloid developers at Crypton Future Media, who were surprised by the sudden attraction to the old VOCALOID software.

At the height of his sales, he was the only one of the two VOCALOID engine vocals to have a consistent ranking as one of the Crypton's Top Ten Products. In 2010, KAITO was ranked as the 7th most popular VOCALOID product they sold.[18] In some instances after his rediscovery, VOCALOID KAITO was even more popular than the VOCALOID2 engine Appends for Miku and the Kagamines. His design has also spawned many producer based derivatives.

Unlike KAITO, KAITO V3 was very well received upon release. Crypton updated their music software sales page with those of March 2013 in the following month and the presenting data that showed KAITO V3 was an all-time topper in sales.[19] He managed to even surpass MEIKO V3 in sales and in August 2014, was in 3rd place while she remained in 6th; 1st and 2nd were held by Hatsune Miku V3 and Hatsune Miku V3 complete.

In 2014, Crypton's Sonicwire download store reported that KAITO V3 had gained 4th position in all Vocaloid sales.[20] In 2015, the package came in 6th position.[21]


It was generally believed that the failure of KAITO's initial software was owed to the reader demographic of DTM magazine, of which 80% were male. It is suggested that this is why Meiko, being female, succeeded.[17]

A sudden change in opinion regarding KAITO occurred on September 16th, 2007, when 'Tatsunami' uploaded a parody of the song in Higurashi no naku koro ni, "A Request From Hatsune" onto NicoNicoDouga. During this time, Miku was extremely popular on NicoNicoDouga, yet almost nobody knew of KAITO, or produced songs using him. The video begins with the words "please sometimes recall [KAITO]," as well as Miku saying "where are you and what are you doing now?" which is from the song "Dear You". Nicozon 初音ミクからのお願い。

About four hours later, "An Answer To Hatsune Miku" was posted by 'Ice-P'. In this video, KAITO responds with, "yes? I was eating an ice cream," and then proceeds to sing a cover of "The Ice Cream Song" (originally sung by Saeko Shuu in 1960). KAITO's last dialogue in this video is "Miku, let's eat it together next time." It happened that Ice-P was producing the cover when he saw the video Tatsunami uploaded. This introduced many people to KAITO and gave him his signature item. Nicozon 初音ミクへの回答

After the turnaround in popularity, many producers began to revalue KAITO as a VOCALOID, which became much of the reason why KAITO stayed popular. His voice became acknowledged for its all-round usefulness and in turn for being highly compatible with the VOCALOID, giving him flexibility in his performance. KAITO proved useful for variety of male roles that other Japanese male VOCALOIDs often did not suit; even though he was the only Japanese male powered by VOCALOID, and the engine was well known for being difficult to work with in comparison to VOCALOID2. Even Wat himself reasoned that much of his popularity was owed to his singing capabilities. Wat quoted one of his acquaintances upon their reaction to KAITO. He stated they were shocked at hearing such a "beautiful male voice".[22]

Generally, KAITO takes the position of 5th most popular "Crypton" VOCALOID, however, he can at times successfully claim Kagamine Len's 4th position, as Len's popularity is partly based on the additional popularity of Kagamine Rin.


KAITO's failure initially led to the focus on mostly female vocals in Vocaloid projects by Crypton Future Media. A possible legacy of this is that the majority of the vocals produced for the Japanese version of Vocaloid are female rather than male.


An independent search on Nico Nico Douga revealed that most VOCALOIDs had less than 1,000 videos uploaded on Nico Nico Douga in 2011 between July 1st and December 15th. However, KAITO managed to make it into the top six of a few lists. KAITO was the 6th most popular VOCALOID in terms of uploads, receiving 1404 uploads. KAITO had the 6th highest number of views with 1,561,894 views and 118,479 mylists. KAITO did not make the top 6 average list, however, he was the 3rd most popular VOCALOID based on the mean number of views with 414 views and 19 mylists, which is a more truer reflection of his popularity.[23]

In 2015 a survey showed KAITO as the 5th most popular Vocaloid during the year 2014 on website Nico Video.[24]

  • Since YAMAHA and Crypton printed different dates for KAITO's release (YAMAHA: 14th, Crypton: 17th), some fans within the Japanese VOCALOID community celebrate KAITO's release date anniversary during all days between the different dates.
  • When it came to the KAITO update, the voicebanks went under much experimentation throughout the developing process. This was because although Crypton were veterans at producing VOCALOID voicebanks, they did not have so much experience with masculine toned vocals such as Fuuga Naoto's. This was due to the fact all of their other VOCALOIDs intended for the consumer market had come from female vocalists.
  • Owed to the difference between VOCALOID KAITO and VOCALOID3 KAITO, Wat himself referred to the two packages as like "brothers" due to their very separate natures.
  • First Japanese male vocal ever released
  • Only VOCALOID voicebank announced as a "failure"
  • Subject to a sudden opinion change around
  • Most popular VOCALOID voicebank
  • Last VOCALOID voicebank produced
  • First VOCALOID voicebank to be updated
  • First male bilingual VOCALOID.
  • Was used in the oldest known VOCALOID related song ever released
  • First VOCALOID by Crypton to be updated to VOCALOID3


  1. https://blog.crypton.co.jp/l/2019/08/n1908311/
  2. https://twitter.com/labopton/status/1167698329389551616?s=19
  3. Fuga Naoto Blog - お返事!
  4. Morio Morito Blog - MEIKOとKAITOのパケ絵描いた人について+α "Illustrators that illustrated Meiko and Kaito"
  5. INTERNET Watch - クリプトン・フューチャー・メディア社長 伊藤博之氏(前編) (Crypton Future Media president Hiroyuki Itō (part one))
  6. 最初のコードネームは、MEIKOはHANAKOで、KAITOはTAROということですね。
  7. Nico Nico MUGEN wiki - KAITO
  9. Wat talking about KAITO's muffler
  10. P-Tina.net - KEIさんの描き方について聞いてみた (Interview with KEI about drawing style)
  11. https://blog.sonicwire.com/2006/03/dtm4.html
  12. https://blog.sonicwire.com/2007/08/vocaloid2_8.html
  13. IT Media News - 異例の売れ行き「初音ミク」「ニコ動」で広がる音楽作りのすそ野 (Extraordinary sales for Hatsune Miku as Nico spreads the music)
  14. Crypton MEDIA phage - [Vocaloid2情報] 出張終了のお知らせ。
  15. G-Search side B - バーチャルアイドル?ボーカロイド?今話題の初音ミクって何? (Virtual Idol? Vocaloid? Hatsune Miku is the new topic now?)
  16. https://twitter.com/vocaloid_cv_cfm/status/420865420938067968
  17. 17.0 17.1 http://www.itmedia.co.jp/news/articles/0802/22/news013.html
  18. https://blog.sonicwire.com/2010/12/2010-vocaloid-1.html
  19. http://vocaloid.blog120.fc2.com/blog-entry-15045.html
  20. http://blog.sonicwire.com/2014/12/sonicwire-2014-5.html
  21. http://blog.sonicwire.com/2015/12/sonicwire-2015-4.html
  22. https://twitter.com/vocaloid_cv_cfm/status/17802923027206145
  23. http://www.vocaloidism.com/2012/01/04/the-harsh-realities-of-vocaloid-on-nico/
  24. http://ch.nicovideo.jp/kadotanimitsuru/blomaga/ar699704

External links

Language Description Site
Japanese Crypton Future Media Inc. official homepage Link
Japanese KAITO V3 product page Link
English deviantArt , art and media community Link
Japanese Pixiv , art and media community Link
Japanese Piapro , art and media community Link