4864.

 (よわむし; pronounced Yowamushi) is currently a seven-member idol group formed on February 9, 2022.

They made their stage debut on February 26, 2022 @Shinjuku WALLY.

Current Members

 * Takamoto Ami (高本あみ; ) (Founding Member)
 * Konose Non (恋瀬のん; ) (Joined on January 7, 2023)
 * Mikoshiba Ruru (御子柴るる; ) (Joined on January 7, 2023)
 * Haru Lisa (榛リサ; ) (Joined on April 3, 2023)
 * Sakurai Neru (櫻井ねる; ) (Joined on April 3, 2023)
 * Hinata Kanaho (日向かなほ; ) (Joined on June 20, 2023)
 * Matsurika Chiru (茉莉花ちる; ) (Joined on June 20, 2023)

Former Members

 * Sakuma Hana (佐久間はな; ) (Founding Member; Left on May 7, 2022)
 * Yano Kotone (矢野ことね; ) (Joined on July 3, 2022; Left on October 31, 2022)
 * Naruse Kaori (成瀬かおり; ) (Founding Member; Left on December 31, 2022)
 * Ogino Ayaka (荻野あやか; ) (Founding Member; Graduated on March 5, 2023)
 * Ichinose Sagiri (一ノ瀬さぎり; ) (Founding Member; Graduated on March 19, 2023)
 * Yukishiro Luna (雪白るな; ) (Joined on January 7, 2023; Hiatus from March 11, 2023; Withdrew on April 3, 2023)
 * Nanamiya Sora (七宮そら; ) (Founding Member; Withdrew on May 25, 2023)
 * Momose Nano (桃瀬なの; ) (Joined on April 3, 2023; Hiatus from May 25, 2023; Withdrew on June 20, 2023)

Timeline
Note:

Digital Singles

 * 1) [2022.05.09] Haruiro no Kiseki (春色の奇跡; Spring-colored Miracle)
 * 2) [2022.05.16] Bakutan Yowamushi's (爆誕ヨワムシ`s; Sudden Formation Yowamushi's)
 * 3) [2022.05.23] Haikei, Kyou Made no Yowamushi na Watashi e. (拝啓、今日までの弱虫な私へ. ; Dear the Cowardly Me I've Been Until Today.)
 * 4) [2022.05.30] Jump Up!
 * 5) [2022.06.06] Tsuyogari (ツヨガリ; Brave Face)
 * 6) [2022.06.13] Nainoni. (ないのに. ; Even though I don't.)
 * 7) [2022.06.27] Shuwashuwanda (しゅわしゅわんだー)
 * 8) [2022.07.04] Jonai Survival (ジョウナイサバイバル)
 * 9) [2023.01.11] Nya Nya Nya Love Mission (にゃにゃにゃらぶみっしょん; Meow Meow Meow Love Mission)
 * 10) [2023.03.15] Osukkya naiyai! (推すっきゃないヤイ!; You've got to push for it!)