Advertised as one more round of BiS, the knockoff, the rebirth, etc., BiSH is the product of original BiS manager Watanabe Junnosuke and producer Matsukuma Kenta. The group was formed at the beginning of 2015 and has released two albums.
The group was originally founded with 5, but Yukako Love Deluxe quit the group early in its existence due to "overthinking." Her vocals remain on the recording of "Spark" for their first album, although it was re-recorded as Spark '16 for their second album. Two new members were added in August of the same year. They were described as sub-members pending full membership until they reached 5000 followers on Twitter, which they did. They made their music debut in the single OTNK, and their performance debut was at their Zepp Tokyo show on August 26, 2015 (attendance to the show was also free with a 2015 2-day wristband from Tokyo Idol Festival, from which BiSH were banned for overzealous fan behavior, although they were re-invited in 2016).
They announced their major debut under avex trax January 19, 2016. Hug Me, a founding member, graduated from the group in June, 2016. Auditions were held to replace her, leading to the admission of new member Ayuni D.
As was the case with BiS, the members contribute heavily to their lyrics and are responsible for their own choreography. From the album, "Is this call??" was written by Aina, "SCHOOL GIRLS, BANG BANG" and "Story Brighter" were written by Chicchi, "HUG ME" was written by Hug Me, and "DA DANCE!!" and "Pira Piro" were written by Momoko. "MONSTERS," "TOUMIN SHOUJO," and "Lonely Girl" were written Yukako.
Official HP: http://www.bish.tokyo/
Official twitter: https://twitter.com/BiSHidol
Watanabe Junnosuke's twitter: https://twitter.com/JxSxK
Official YouTube (less active since debut with avex)
Releases:
Album - Brand-new Idol Shit, 2015.05.27
Single - OTNK, 2015.09.02 *abbreviation for "ochinko," meaning, "penis."
----------------------------Major debut with avex trax------------------------------------
Album - FAKE METAL JACKET, 2016.01.20
Single - DEADMAN, 2016.05.04
Album - KiLLER BiSH, 2016.10.05
Members:
Centochihiro Chicchi
Nickname: Chittiii
https://twitter.com/Chittiii_BiSH
http://ototoy.jp/feature/2015042805
Former member of Tsuyogari Sensation under the name Aoi Chihiro
From her twitter description: "BiSH's garbage captain, Sentochihiro Chicchi. Music and blue and anime and games. A taste for bananas and the grotesque. She will favorite your tweets."
Momoko Gumi Company
Nickname: Momokan
http://ototoy.jp/feature/2015041505
From her twitter description: "BiSH's tiny person with a short haircut. Usually being frivolous."
Aina The End
Nickname: Aina
http://ototoy.jp/feature/2015042205
Former back-up dancer for the group parallel under the name Iitani Aina
Loves Oomori Seiko
From her twitter description: "BiSH's Aina The End. Long black hair, blunt bangs, and a husky voice. Does most of the choreography. Loves singing. Who here is a Biliken?"
Hashiyatsume Atsuko
https://twitter.com/atsuko84_BiSH
Always wearing glasses.
LingLing
https://twitter.com/liNGliNG_BiSH
Youngest. Taciturn. Takes her name from former Morning Musume member LinLin.
Ayuni D
https://twitter.com/AYUNiD_BiSH
Former members:
Lyric translations (translations by me, compilations by poleosis):
Self-titled album
Fake Metal Jacket
KiLLER BiSH (WIP)
Subtitled videos
I also translated the interview conducted with Watanabe upon his decision to "do BiS again," to give some insight into what brought about the group.