Zenbu Kimi no Sei da.

Zenbu Kimi no Sei da.
Left to right: Hino Hikari, Megumi Kisaragi, Muku, Mei Yui Mei and Komochi Nene in 2025
Left to right: Hino Hikari, Megumi Kisaragi, Muku, Mei Yui Mei and Komochi Nene in 2025
Background information
OriginJapan
Genres
Years active2015–present
Members
  • Megumi Kisaragi
  • Mei Yui Mei
  • Muku
  • Hino Hikari
Past members
  • Asuna Yumesaki
  • Aza Mogeki
  • Gomochi Narumi
  • Mene Mikuchiyo
  • Togaren
  • Akebono Nagi
  • Yotsu Hitomi
  • Mashiro
  • Oyatsu Yukinojou
  • An Amanechi
  • Fufu Shizuku
  • Kasane Motochika
  • Kotetsu
  • Miruru Rate
  • Komochi Nene
Websitekiminosei.com

Zenbu Kimi no Sei da. (ぜんぶ君のせいだ。; It's All Your Fault.) is a Japanese alternative idol girl group formed in 2015.[1] They released their debut album, "Yamikawa IMRAD", on January 27, 2016.[2]

Members

Name Member Color Notes Details
Current Members
Megumi Kisaragi (如月愛海) Red Original Member
Muku ( むく) ”Foam”

(baby blue)

 Joined March 2024
Mei Yui Mei (メイユイメイ) "Angel" (White) Joined January 2021
Hino Hikari “Sunset” (Orange) Joined March 2024
Former Members
Asuna Yumesaki (夢咲夢日) Yellow Original Member, Left October 2015
Aza Mogeki (十字) Purple Original Member, Left November 2016
Gomochi Narumi (成海5才) Light Blue Original Member, Left December 2016
Mene Mikuchiyo (未来千代めね) Dark Blue Joined January 2017, Left August 2017 Left for health reasons
Togaren (咎憐无) Pink Joined January 2017, Left April 2019 left to retire from the entertainment industry; returned to the industry December 2019 as "Coai" with the group "PEDIOPHOBIA" (2019-2020), later joined "Yakousei Amuse" in March 2021, and "GILTY × GILTY" in June 2023 as "Hakuu Coai".
Yotsu Hitomi (一十三四) Green Joined August 2015, Left August 2020
Akebono Nagi (凪あけぼの) Yellow Joined May 2019, Left August 2020
Mashiro (ましろ) White Original Member, Left September 2020 Later joined "YOLOZ" under the name "Ichi"
Oyatsu Yukinojou (征之丞十五時) Sky Blue Joined May 2019, Left April 2022
An Amanechi (甘福氐喑) Green Joined September 2020, Left April 2022
Fufu Shizuku (雫ふふ) Gray Joined September 2020, Fired November 2022 Left after multiple contract violations
Kasane Motochika (もとちか襲） Purple Joined September 2020, Left March 2023 Left during her hiatus
Kotetsu (个喆） “First Love”

(Pink)

Joined January 2021, Left March 2023
Miruru Latte (己涙々らて) “Drowning Pink”

(pink)

 Joined March 2024, Left April 2024 Left due to mental health issues
Komochi Nene (寝こもち) "Ramune" (Green) Joined April 2022, hiatus since March 2026, withdrew June 2026 Former Seireki13ya member. Final appearance July 18, 2026

Timeline

Discography

Studio albums

Title Album details Peak
chart
positions
JPN
Oricon[3] Hot[4]
Yamikawa IMRAD (やみかわIMRAD) 120—
Anima Animusu PRDX (アニマあにむすPRDX)
  • Released: November 9, 2016
  • Label: Codomomental
  • Formats: CD, digital download
 53100
Egoistic Eat Issues
  • Released: September 6, 2017
  • Label: Codomomental
  • Formats: CD, digital download
 3654
Neorder Nation
  • Released: July 4, 2018
  • Label: Codomomental
  • Formats: CD, digital download
 3162
Arumumei (或夢命)
  • Released: December 18, 2019
  • Label: Codomomental
  • Formats: CD, digital download
 7085
FlashBack NightMare
  • Released: November 24, 2021
  • Label: Codomomental
  • Formats: CD, digital download
 188—

Re-recorded albums

Title Album details Peak
chart
positions
JPN
Oricon[3] Hot[4]
Live or Die ~Chinu Ichi~ (LIVE or DIE〜ちぬいち〜)
  • Released: July 31, 2019
  • Label: Codomomental
  • Formats: CD, digital download
 3496
Live or Die ~Chinu Ni~ (LIVE or DIE〜ちぬに〜)
  • Released: October 16, 2019
  • Label: Codomomental
  • Formats: CD, digital download
 80—
Q.E.D.mono
  • Released: March 31, 2021
  • Label: Codomomental
  • Formats: CD, digital download
 3887
Q.E.D.bi
  • Released: June 2, 2021
  • Label: Codomomental
  • Formats: CD, digital download
 6490
Q.E.D.tri
  • Released: April 27, 2022
  • Label: Codomomental
  • Formats: CD, digital download
 TBATBA

Compilation albums

Title Album details Peak
chart
positions
JPN
Oricon[3] Hot[4]
Ninon (新音)
  • Released: September 6, 2017
  • Label: Codomomental
  • Formats: CD, digital download
 53—

Singles

Title Year Peak
chart
positions		 Album
Oricon[3]
"Mudai Gasshō" (無題合唱) 2016 52 Anima Animusu PRDX
"Boku Tabetamo Kimi no Subete wo" (僕喰賜君ノ全ヲ) 31
"Sophomore Sick Sacrifice" 2017 40 Egoistic Eat Issues
"Wagamama Shinsei Hominina" (わがまま新生Hominina) 36
"Sekirarararai Otto" (せきららららいおっと) 58 Neorder Nation
"Tonari Kore Arata" (トナリコレアラタ) 2018 21
"Natural Born Independent / Romance Sect" (Natural Born Independent/ロマンスセクト) 2019 29 Arumumei
"Antilyours" 35
"Zenbu Boku no Sei da" (ぜんぶ僕のせいだ。) 61
"Insomnia" (インソムニア) 2020 — FlashBack NightMare
"Dada" (堕堕) 2021 48
"Heavenlyheaven" 61
"Roman Jihen" (浪漫事変) 2022 41
"Lotus Flower Cosmetics" 2024 —

References

  1. ↑ ""病みかわいい"アイドル、ぜんぶ君のせいだ。が初作品リリース". Natalie. July 8, 2015.
  2. ↑ "ぜんぶ君のせいだ。が1stフルアルバムをリリース！ インストア＆ワンマンツアーも決定！". OK Music. January 27, 2016. Archived from the original on December 29, 2016. Retrieved August 19, 2020.
  3. 1 2 3 4 "Zenbu Kimi no Sei da. | Oricon Style". Oricon. Retrieved August 19, 2020.
  4. 1 2 3 "Billboard Japan Hot Albums". Billboard Japan. Retrieved June 19, 2020.
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