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Hakui Koyori (博衣こより) is a female Japanese Virtual YouTuber associated with hololive, debuting as part of its sixth generation under the name of "Secret Society holoX" alongside La+ Darknesss, Takane Lui, Sakamata Chloe and Kazama Iroha.

Introduction Video



Koyori's introduction.


The one in charge of R&D in Secret Society holoX.

As part of her studies into human behavior, she meddles in the other members' affairs and tries to help them out at every turn.

Possessed by an insatiable thirst for knowledge, she may sometimes also deliberately mess with people just to see how they react.

The self-proclaimed "brains of the operation." Her areas of expertise, however, are pretty limited.


Koyori is an energetic and cheerful person, similar to Shirakami Fubuki. Initially, she was considered by some fans as one of the most "seiso" members out of her generation along with Kazama Iroha, but this has since been negated when she started showing her perverted side, such as occasional drops of innuendos and knowledge in NSFW fictions.



Hakui Koyori's YouTube channel was created on 12 September 2021. Her Twitter account was also created in September 2021. She was first revealed as part of holoX, the sixth generation of the Japanese branch of hololive, in an introductory video[5] posted on 26 November 2021 at noon JST. She made her first tweet at the same time, greeting followers with "konkoyo~". Her Twitter account was restricted shortly thereafter.[6]

Her debut stream took place on 28 November 2021 at 9pm JST. Koyori was the third -holoX- member to debut. Over 175,000 peak viewers attended her debut.


On 8 December, 12 days after the announcement of holoX, the restriction on her Twitter account was lifted. Her YouTube channel got approved for monetization on the same day.

On 14 December, Koyori reached 400,000 subscribers on YouTube.[7]

On 24 December, Koyori opened her channel membership feature.[8]

On 28 December, hololive's Twitter account announced that Nene and the sixth gen members would get "new year" costumes.[9]


On 1 January, Koyori debuted her second 2D costume to celebrate the new year. In this costume Koyori got a new hairstyle using her hair in a ponytail, her braided locks that in her main outfit form buns at her head's sides now go from right to left making the braid fall alongside the ponytail, this side is also decorated with various flower ornaments and ribbons, the biggest flower's petals are pink while the inner ones are white, underneat Koyori retains her molecule diagram-like accessory but both forms are white and in a different order. The upper section of her furisode is mostly white with light pink stripes and patterns of flowers in pink, blue and black, her furisode's sleeves are detached being put in please by laces around her arms instead. The lower section is pink, with a wind blowing pattern that goes from bottom right to upper left complemented with dark pink and red flowers, and white butterflies, her furisode falls up to her knees. The edges of her furisode are dark brown, the same color as her obi that is decorated with two ribbons the small one is red with pink stripes and white and has a bell, and the big one is dark pink and white with a dark brown flower ornament. Koyori uses white socks and black sandals.[10]

On 23 January, Koyori reached 500,000 YouTube subscribers during a singing stream. She is the 48th hololive member to reach this milestone.[11][12] She also released the cover song "S'il Vous President" by Nanahoshi Kangengakudan on 24 January to commemorate this milestone.[13]

On 15 March, on her birthday, she debuted a new accessory: red glasses.[14][15]

On 14 May, she reached 600,000 subscribers on YouTube channel during an endurance karaoke stream.[16][17]

On 10 June, Koyori announced that she would get her 3D model.[18]

On 16 June, Koyori debuted her 3D model during a stream with more than 100,000 live viewers. She has the option to remove her coat.[19]

On this date she also debuted her first original song "WAO!!."


Main page: Hakui Koyori/Discography
WAO!! 1st single 17 June 2022    
  1. "WAO!!"
  2. "WAO!!" (instrumental)
Hakui Koyori - WAO!!.jpg
External links
Digital Release • Music Video • YouTube

Mascot and fans

  • Her fans are known as "Koyori's assistants," or in Japanese, 「こよりの助手くん」, "Koyori no joshu-kun."
  • Her partner is a coyote robot, named "Kokoro."[20]


  • Hakui Koyori is not a cat or a fox, but a coyote. As described in her debut, she was born on a savannah to coyote parents. Rather than inheriting her parents' traits, her intelligence and "geek" stats were exceptionally high.
  • In the kanji used to write her surname "Hakui," 「博衣」, the first is read "haku" and means "doctor" or "professor," and appears in "hakase," which has the same meaning; while the second kanji, read "i," means "clothing." Her given name "Koyori" is written in hiragana, and is a Japanese female given name, which resembles the word "coyote."
  • Koyori shares her illustrator with Petra Gurin of Nijisanji EN.
  • Her greeting "konkoyo" appears to be a portmanteau of the standard Japanese greeting "konnichiwa" and her name Koyori. Similar greetings include Shirakami Fubuki's "kon kon kitsune" and Ceres Fauna's "konfauna."
  • Her hexagonal hair pin represents a molecular diagram of a benzene ring, a constituent of petrochemicals.
  • Koyori's strengths include skill with tongue-twisters, good memory, skill with numbers and with mental games, detective skill, and typing. She is skilled at voice impersonations.
  • Her weaknesses include horror, insects, arm, poor luck, mornings, spicy food, and FPS games.
  • Her favorite things include singing, planning, MC, human observation, video games, crane games, and theme parks.
  • Her favorite foods are meat, ramen, sake, shirako, udon, mayonnaise, and fugashi.
  • Her favorite anime include Macross F, Higurashi no naku koro ni, Gundam Seed, Detective Conan, Saki, Uma Musume, and Tokyo Revengers. She also likes western-made media including Game of Thrones and Ready Player One.

External Links


Twitter hashtags

Further reading

hololive logo
Solo Debutants
(hololive 0th Gen)
Tokino Sora (🐻) A-chan and AnkimoRoboco-san (🤖)Sakura Miko (🌸)Hoshimachi Suisei (☄️)AZKi (⚒️)
1st Generation Yozora Mel (🌟)Aki Rosenthal (🍎)Natsuiro Matsuri (🏮)Shirakami Fubuki (🌽)Akai Haato (❣️)
Retired Hitomi Chris (🌰)
2nd Generation Minato Aqua (⚓️)Murasaki Shion (🌙)Nakiri Ayame (👿)Yuzuki Choco (🍫💋)Oozora Subaru (🚑)
hololive GAMERS Shirakami Fubuki (🌽)Ookami Mio (🌲)Nekomata Okayu (🍙)Inugami Korone (🥐)
3rd Generation
(hololive Fantasy)
Usada Pekora (👯)Shiranui Flare (🔥)Shirogane Noel (⚔️)Houshou Marine (🏴‍☠️)
Retired Uruha Rushia (🦋)
4th Generation Tsunomaki Watame (🐏)Tokoyami Towa (👾)Amane Kanata (💫)Himemori Luna (🍬)
Retired Kiryu Coco (🐉)
5th Generation
Yukihana Lamy (☃️)Momosuzu Nene (🥟)Shishiro Botan (♌)Omaru Polka (🎪)
Retired Mano Aloe (👅)
6th Generation
La+ Darknesss (🛸💜)Takane Lui (🥀)Hakui Koyori (🧪)Sakamata Chloe (🎣)Kazama Iroha (🍃)
hololive IN logo
1st Generation Airani Iofifteen (🎨)Moona Hoshinova (🔮)Ayunda Risu (🐿️)
2nd Generation Kureiji Ollie (🧟‍♀️)Anya Melfissa (🍂)Pavolia Reine (🦚)
3rd Generation Vestia Zeta (📜)Kaela Kovalskia (🔨)Kobo Kanaeru (☔)
hololive EN logo
1st Generation
-Myth- or holoMyth
Ninomae Ina'nis (🐙)Takanashi Kiara (🐔)Watson Amelia (🔎)Mori Calliope (💀)Gawr Gura (🔱)
Project: HOPE IRyS (💎)
2nd Generation
Tsukumo Sana (🪐)Ceres Fauna (🌿)Ouro Kronii (⏳)Nanashi Mumei (🪶)Hakos Baelz (🎲)
hololive CN logo
(Dissolved Branch)
1st Generation Yogiri (🍼🎸)Civia (🌙🦄)Spade Echo (🍑) Everyone retired
2nd Generation Rosalyn (📖)Doris (🐟)Artia (❄️) Everyone retired
Holostars logo
1st Generation Hanasaki Miyabi (🌺)Kanade Izuru (🎸)Arurandeisu (🍕)Rikka (⚙️)
Retired Yakushiji Suzaku (💊)Kagami Kira (💙)
2nd Generation
Sun Tempo
Astel Leda (🎭)Kishido Temma (🦔💨)Yukoku Roberu (🍷)
3rd Generation
Kageyama Shien (🟣)Aragami Oga (🐃)
Retired Tsukishita Kaoru (💅)
UPROAR!! Yatogami Fuma (🦝)Utsugi Uyu (🃏)Hizaki Gamma (🖌️)Minase Rio (🕯️)


  1. rariemonn [@rariemonn765]. (2021, November 28). ホロライブ6期生 博衣こより ちゃん(@hakuikoyori)のLive2Dモデルを制作させていただきました! [Tweet]. Twitter.
  2. rariemonn [@rariemonn765]. (2021, January 2). ホロライブ6期生 博衣こより ちゃん(@ hakuikoyori)の正月衣装のLive2Dモデルを制作させていただきました!遅ればせながらのご報告ですいません!とても華やかな衣装でしたね! [Tweet]. Twitter.
  3. Yatsurugi [@yatsurugi_mmd]. (2022, June 16). 博衣こよりさん(@ hakuikoyori)の3Dモデルを担当しました! [Tweet]. Twitter.
  4. 4.0 4.1 4.2 Hakui, K. [Koyori ch. 博衣こより - holoX -]. (2021, November 28). 【初配信】スタートまでにTwitterの凍結は溶けるのか!?RTA開始!ふぁいっ!【博衣こより/ホロライブ】 [Video]. YouTube.
  5. hololive ホロライブ - VTuber Group. (2021. November 26). 【#holoX】Are You Ready?【ホロライブ6期生デビューPV】 [Video]. YouTube.
  6. Hakui, K. [@hakuikoyori]. (2021, November 26). こんこよ~(一発目からオシャレな挨拶ではじめたくて、一週間夜しか寝ずにいろいろ調べたり考えたりした結果、こんこよしか出てこなかった顔) [Tweet]. Twitter.
  7. Hakui, K. [@hakuikoyori]. (2021, December 14). #ラプこよASMR という地獄を見てくれたみんなに感謝❤️ そしてチャンネル登録40万人ありがとうございます(このタイミンg [Tweet]. Twitter.
  8. Hakui, K. [@hakuikoyori]. (2021, December 24). メンバーシップ解禁配信ありがとう みんなに盛り上がってもらいたい!っていう気持ちで考えたスタンプで、歌枠たくさん盛り上げてくれて嬉しかったよ〜 とっても素敵なバッジとスタンプをのーさー先生 @nosir_onadat に仕上げていただいています 第2弾もお楽しみに [Tweet]. Twitter.
  9. hololive production [@hololivetv]. (2021, December 28). 【🎉お知らせ🎉】「#桃鈴ねね」と「#秘密結社holoX」計6名のお正月衣装お披露目リレー配信が、2022年1月1日(土)13時から順次配信決定🎍✨ [Tweet]. Twitter.
  10. Hakui, K. [Koyori ch. 博衣こより - holoX -]. (2022, January 1). 【#ホロライブ正月衣装】可愛すぎて失神注意♡【博衣こより/ホロライブ】 [Video]. YouTube.
  11. Hakui, K. [Koyori ch. 博衣こより - holoX -]. (2022, January 23). 【耐久歌枠】50万人目指して歌う!Singing!【博衣こより/ホロライブ】 [Video]. YouTube.
  12. Hakui, K. [@hakuikoyori]. (2022, January 23). Ch登録50万人ありがとうっ 記念の瞬間を助手くんと一緒に迎えられてとっても嬉しいです。 これからも自分らしく、楽しく、みんなが楽しめる場所を作っていくので 初見くんも古参くんも 明日からもよろしくお願いします [Tweet]. Twitter.
  13. Hakui, K. [@hakuikoyori]. (2022, January 23). New歌ってみたお知らせ Ch登録50万人突破を記念して! [Tweet]. Twitter.
  14. Hakui, K. [Koyori ch. 博衣こより - holoX -]. (2022, March 15). 【#博衣こより生誕祭2022】凸待ち&重大告知&more!?【博衣こより/ホロライブ】 [Video]. YouTube.
  15. rariemonn [@rariemonn765]. (2022, March 15). ホロライブ6期生 博衣こより ちゃん(@ hakuikoyori)のアイテム追加のLive2Dモデルを制作させていただきました!個人的に赤フレームはイメージ通りです👓 (いつものモーション) [Tweet]. Twitter.
  16. Hakui, K. [Koyori ch. 博衣こより - holoX -]. (2022, May 14). 【耐久歌枠】60万人目指して歌います! #こより60万人【博衣こより/ホロライブ】 [Video]. YouTube.
  17. Hakui, K. [@hakuikoyori]. (2022, May 14). ㊗チャンネル登録60万人ありがとう🎊54曲目、約5時間40分で60万人を迎えました❣長時間応援してくれた助手くん見守りにきてくれた助手くん今日出逢ってくれた助手くん本当にありがとう!これからも毎日「楽しい」をお届けできるよう頑張るので、よろしくお願いします! [Tweet]. Twitter.
  18. Hakui, K. [Koyori ch. 博衣こより - holoX -]. (2022, June 10). 【Singing】重大告知アリ!!ホロメンプロデュース歌枠🎤🎶【博衣こより/ホロライブ】 [Video]. YouTube.
  19. Hakui, K. [Koyori ch. 博衣こより - holoX -]. (2022, June 16). 【#博衣こより3D】歌います!踊ります!体を張ります!アイドルです!!!【ホロライブ】 [Video]. YouTube.
  20. Hakui, K. [@hakuikoyori]. (2021, December 28). 👏㊗️ロボコヨーテの名前決定㊗️🎉 こよの白衣のポケットにいるロボコヨーテの名前が決まりました!!!✨ 🐶名前:ココロ (由来:小さい・コヨーテの・ロボット) 🌟愛称:ココロン です!!! [Tweet]. Twitter.