Hakui Koyori

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.

Profile
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.

Personality
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.

Background
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 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.

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.

2021
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.

On 24 December, Koyori opened her channel membership feature.

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

2022
On 1 January, Koyori debuted her second 2D costume to celebrate the new year. 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, underneath 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 place 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.

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

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

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

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

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.

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

On 9 August, as part of the "hololive Summer 2022" event, Koyori debuted her 3D swimsuit in a stream held on hololive's Japanese YouTube channel alongside Shirakami Fubuki, Yukihana Lamy and Usada Pekora. Unlike the original swimsuits from 2019 that had individual designs, these swimsuits are meant to be matching outfits similar to the 3D idol costumes. The swimsuits come in two types one with thin straps for the top and a diagonal cut mini skirt and the other one has ruffled straps in the top and an even mini skirt. Both version are white with various patterns including hololive's and Holoearth's logos, hearts and sparks. The swimsuits are personalized by including different colors to match each talent. Additionally they have the option to wear a hoodie.

During a stream the same night, she released a new update to her 2D model, her 2D model can take off the lab coat.

On 22 August, continuing the "hololive Summer 2022" event, Koyori debuted her 3D yukata. Like other 3D costumes the yukatas have a variety of styles that hololive members can choose from. The yukatas come in various colors and patterns including fireworks, flowers and goldfish.

On 31 August, she reached 700,000 subscribers on YouTube channel during a karaoke stream.

On 27 October, Koyori debuted a new hairstyle for her new year costume. Using braided twintails.

On 16 November, during a stream on her channel, holoX announced that they would get their 3D idol costumes.

On 28 November, Koyori held her one year anniversary. During the stream, she debuted her 3D idol costume and released the second original song Otome yo Motomeyo Q.E.D."

On 4 December, during holoX first year anniversary, they released their first original song "Jouya Repaint."

On 21 December, during a holoX meeting stream, Koyori, Takane Lui, Sakamata Chloe and Kazama Iroha debuted their 3D christmas costumes.

2023
On 6 January, Koyori reached 800,000 subscribers on her YouTube channel during a singing endurance stream.

On 14 March, during her birthday countdown stream, Koyori released her third original song "Shijyo Saidai no QUESTION!"

On 15 March, during her birthday, Koyori released her fourth original song "Egoistic Seesaw."

On 18 March, Koyori debuted her second 3D idol costume during hololive 4th fes. "Our Bright Parade" DAY 1.

On 10 May, Koyori reached 900,000 subscribers on her YouTube channel during a singing endurance stream.

On 8 July, during a stream unveiling the full image of the music project "Blue Journey," she debuted a new 3D costume as a member of this project alongside Houshou Marine, Shirogane Noel, Sakura Miko and Yukihana Lamy. She uses a blue beret with a plaid pattern. The costume has a white blouse with detached sleeves, a blue ribbon in the chest decorated with light blue jewel and a blue belt below the chest. The blouse lower edge is asymmetrical and divided in three, the front has planks and it is the longest, then the right side is longer that the left side. She uses a long blue skirt with a plaid pattern and the inner section is light blue. On the back the costume is decorated with a see through ribbon.

On 10 July, Koyori announced that she would get her third 2D costume.

On 15 July, Koyori debuted her third 2D costume. Koyori uses a bob haircut. This costume is multilayered with various parts that can be combined. Koyori wears a white and pink hoodie with coyote shaped pockets, in the left one she carries a mayonnaise bottle, the sleeves are open on the foreams decorated with crossed ribbons. She can put on the hoodies cap. Underneath she wears loungewear with the same colors, she has a chest window in the shape of a coyote's head. Finally Koyori has a swimsuit. Koyori can uses her main costume's coat and the hoodie with the swimsuit.

On 30 July, as part of the "hololive Summer 2023" event, during a karaoke relay, Koyori debuted her second 3D swimsuit. The 2023 swimsuits are inspired in a sailor uniform. Members wear a two layered swimsuit, the first layer is blue from the straps going down diagonally to the center where each member has a mostly blue bow but one of the sides and the brooch are in one color representative of each member. The rest of the top is white. The edge has a semi circular. The lower piece of the first layer has two variants, one is a two layered blue skirt decorated with a white belt, a golden chain with some decorations hanging from it and a bow to the left and planks to the right. The second version is mostly the same but they wear blue shorts instead of a mini skirt. Koyori uses the mini skirt. The second layer of the outfit is a matching striped bikini in white and another color depending on the member.

Discography

 * Main page: Hakui Koyori/Discography

Events

 * On 11 July 2022, it was announced on hololive's Twitter account that Hakui would appear in merchandise that could be won in Capcom Net Catcher featured in two different artworks, four prices could be obtained including: keychains, mouse pads, tapestries and cushions. The colaboration would be available from 15-28 July 2022.
 * On 31 October 2022, it was announced on hololive's Twitter account that Koyori would be collaborating with KURAND on a sake production "Science Brothers No.54". Pre-orders would be available from 4-7 November and 7-30 November, respectively, with two deliveries in 2022 and 2023.
 * On 28 April 2023, hololive's Twitter account announced a collaboration with the Japanese professional baseball team "Yomiuri Giants" in a match on 1 August 2023 at Tokyo Dome, featuring Koyori and another eight members participating in various promotionals: announcements, posters, signage in the halls, as well as tickets and merch.

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."

Relationships

 * "KoboKoyo," along with Kobo Kanaeru.
 * "MooKoyo," along with Moona Hoshinova.
 * "Hakui no Tenshi"「博衣の天使」 alongside Amane Kanata.

Name

 * 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."

Likes and dislike

 * 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.

Miscellaneous

 * 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.
 * Koyori shares her illustrator with Petra Gurin of Nijisanji EN and Igarashi Rika of Nijisanji.
 * 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.
 * holoX appears on the cover of the 8th volume of "VTuber Style" (VTuberスタイル) magazine which would be released on 28 July 2022.
 * The official manga about the Secret Society holoX would be serialized on Shonen Jump+ magazine starting 1 November 2022.

Media

 * Koyori ch. 博衣こより - holoX - - YouTube channel
 * hakuikoyori_hololive - Twitch channel
 * Hakui Koyori's corporate profile on hololive.hololivepro.com
 * @hakuikoyori - Twitter account
 * @hakuikoyori_hololive - Tiktok account

Twitter hashtags

 * #こより実験中 - Stream talk
 * #こよりすけっち - Fan art

Further readings

 * 博衣こより - Nicovideo Encyclopedia
 * 博衣こより - Pixiv Encyclopedia
 * 博衣小夜璃 - Moegirl Encyclopedia
 * 하쿠이 코요리 - Namu Wiki