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Kaizensei Altruism (蓋然性オルトイズム) is currently a two-member idol group formed on December 26, 2020 by ONEtoONE Agency and includes former members of TEARS.[1]

They made their stage debut on February 1, 2021 @Shinjuku ReNY.

It was announced that the current structure would end on February 9, 2025.

Members[]

Current Members[]

Former Members[]

  • Nagatsuki Yuuki (長月優希; Red) (Founding member; Withdrew May 26, 2021)
  • Asahina Nana (朝比奈なな; Sky Blue) (Founding member; Graduated June 20, 2021)
  • Shiraishi Neon (白石ねおん; Yellow) (Founding member; Graduated June 20, 2021)
  • Tachibana Ui (立花憂衣; Purple) (Founding member; Transferred to Re:INCARNATION October 4, 2021)
  • Kawashima Arisu (河島有寿; Mint Green) (Founding member; Withdrew March 4, 2022)
  • Aikawa Mana (藍川まな; Yellow) (Joined July 23, 2021; Transferred to trainee unit March 16, 2022)[3]
  • Futaba Yui (二葉唯; Green) (Joined July 23, 2021; Transferred to trainee unit March 16, 2022)[3]
  • Tsuji Kaho (辻海帆; Black) (Founding member; Transferred to TEARS March 19, 2022)[4]
  • Kanzaki Serina (神崎せりな; White) (Joined March 20, 2021; Inactive since August 2022; Left unknown)[5]
  • Minami Shion (美波紫音; Dark Pink) (Joined March 26, 2022; Inactive since August 2022; Left unknown)[6]
  • Kururugi Maho (枢木まほ; Blue) (Founding member; Graduated December 31, 2022)[7]
  • Shirakawa Rena (白川れな; Dark Pink) (Joined January 30, 2023; Left unknown)
  • Shirohane Chihiro (城羽千姫; Shining Blue) (Joined April 21, 2024; Withdrew August 24, 2024)
  • Makise Yumi (牧瀬裕美; Coral Pink) (Founding member; Graduated February 9, 2025)
  • Mizuue Saki (水上咲; Orange) (Founding member; Graduated February 9, 2025)
  • Kita Conatsu (北こなつ; Silver) (Joined March 20, 2021; Graduated February 9, 2025)[5][8]
  • Hiyori Yuu (日和ゆう; Purple) (Joined March 26, 2022; Graduated February 9, 2025)[6]
  • Sakuraba Nana (桜羽なな; Red) (Joined April 24, 2022; Graduated February 9, 2025)[2]
  • Aoi Nano (葵菜乃; Nanoha Yellow) (Joined July 3, 2022; Graduated February 9, 2025)[9]
  • Mashiro Hina (真白ひな; Black) (Joined April 21, 2024; Graduated February 9, 2025)

Timeline[]

Note: Dark Grey - Member Inactive / on Hiatus

Discography[]

Singles[]

  1. [2022.06.15] emperor

Digital Singles[]

  1. [2023.08.16] LAST LOVE
  2. [2023.08.23] Eien Memories (永遠 Memories)
  3. [2023.08.30] Kindan Lover (禁断Lover)
  4. [2023.09.06] Kuusou Believe (空想Believe)
  5. [2023.09.13] Hana Kotoba ~Kimi wo Wasurenai~ (花言葉〜君を忘れない〜)
  6. [2023.09.20] Hoshigarina Boku ni Kiss wo Shite (欲しがりな僕に kiss をして)
  7. [2023.09.27] Namida no Ryou Omoi (ナミダの両思い)

Gallery[]

External Links[]

References[]

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