Koseki Bijou

Koseki Bijou (古石ビジュ―) is an English speaking Virtual YouTuber associated with hololive. She is set to debut in 2023 as part of hololive -Advent-, the third generation of members of hololive English, alongside Shiori Novella, Nerissa Ravencroft, Fuwawa Abyssgard and Mococo Abyssgard.

Profile
"I hope you'll feel my radiance!"

Formed from the crystallization of all forms of human emotion, Koseki Bijou is "The Jewel of Emotions." Over years and years, emotions of beauty and filth alike have woven into her under immense pressure, resulting in an unmatched brilliance. Her ancient, mystic brilliance caused strife between the masses of the greedy, who fought over ownership of her. This led to her being imprisoned in secrecy, far from the reach of humans.

It seems as though when she encounters people, and particularly their good emotions, her radiance shines even brighter.

Background
Following the debut of hololive English second generation -Council-, hololive English announced a permanent English language audition page on 30 December 2021. An update to the audition page on 7 September 2022 sparked speculation of an upcoming English third generation.

Koseki Bijou's YouTube and Twitter accounts were originally created on 11 May 2023, although they contained no content at this point.

The third generation of hololive English, -Advent-, was first teased on the hololive English Twitter account with a short video on 22 July 2023. This was followed by another teaser video on 23 July, showing five new characters.

On 25 July, the hololive English YouTube channel posted a video titled Wanted!, revealing the five members of -Advent- and announcing their upcoming debuts. At the same time, Bijou also posted a short teaser video on her YouTube channel and made her first tweet.

All -Advent- members' YouTube channels reached 100,000 subscribers within twelve hours of the announcement.

Koseki Bijou is set to debut on Saturday, 29 July 2023 at 8:45 PM to 9:30 PM PDT (Sunday, July 30th, 12:45 PM to 1:30 PM JST).

Name

 * Koseki is a Japanese surname. She writes it with the kanji 「古石」, which are normally used to write this surname.
 * "Kouseki" also means "crystal" or "mineral." It is similar to the word houseki「宝石」(gemstone).
 * Bijou is a word of French origin, referring to a type of jewelry. She writes it in katakana, normally used to write loanwords from other languages.
 * In Japanese, "bijou" 「美女」 also means "beautiful woman." It is also a female given name, written with the same kanji.
 * She writes her name in Japanese name order. She is the only member of her generation to do so, and the only one to use kanji in part of her name.

Lore

 * According to a tweet made before her debut, she isn't worried about being "yeeted" because she can fly.

Miscellaneous

 * At 140 cm (4'7"), she is the shortest member of hololive English at time of debut, defeating previous record-holder Gawr Gura by 1 cm. However, she is still taller than Japanese member La+ Darknesss, at 139 cm.
 * Her emoji is a . It refers to a type of stone statue once built by the inhabitants of the island of Rapa Nui, also known as Easter Island.
 * Her Live2D artist, Mo Kitada, previously drew Hakui Koyori's 2023 birthday merch.
 * Her Live2D rigger also rigged various other members, including Anya Melfissa and Kobo Kanaeru.
 * She speaks some Thai, a language spoken by her mother.
 * Referencing her lore, in her default Live2D outfit the large crystal array on her chest changes color in conjunction with her facial expressions, ranging from blue when sad, to a vibrant rainbow color when happy.

Media

 * Koseki Bijou Ch. hololive-EN - YouTube channel
 * Koseki Bijou's corporate profile on hololive.hololivepro.com
 * @kosekibijou - Twitter account

Twitter hashtags

 * #bijouwled - Fan art