Ragken!

 (らぐけん！) was the trainee group for the idol agency Ragdolls from September 5, 2019 until November 5, 2020, when it was succeeded by the Kabukitai groups (Kitsunebi, SUIGETSU, Raiden, AMAKAZE).

Current Members

 * Sara (さら) (Founding member)
 * Eimi (えいみ) (Founding member)
 * Mugi (むぎ) (Joined late 2019?)
 * Yura (ゆら) (Joined late 2019?)
 * Mirei (みれい) (Joined February 2, 2020)
 * Himari (ひまり) (Joined February 2, 2020)
 * Kohaku (こはく) (Joined February 2, 2020)
 * Sae (さえ) (Joined April 4, 2020)
 * Sayaka (さやか) (Joined April 4, 2020)
 * Rin (りん) (Joined September 3, 2020)
 * Sena (せな) (Joined September 3, 2020)
 * Macoto (まこと) (Joined October 1, 2020)
 * Riol (りおる) (Joined October 1, 2020)

Former Members

 * Suika (すいか) (Joined September 5, 2019; left October 5, 2019)
 * Mimi (みみ) (Joined September 5, 2019; graduated January 9, 2020)
 * Iroha (いろは) (Founding member; promoted to Raydroid February 7, 2020)
 * Aori (あおり) (Founding member; promoted to Raydroid February 7, 2020)
 * Mashiro (ましろ) (Founding member; promoted to Raydroid February 7, 2020)
 * Karen (かれん) (Joined September 5, 2019; promoted to Raydroid February 7, 2020)
 * Rimina (りみな) (Joined late 2019?; promoted to Raydroid February 7, 2020)
 * Napi (なぴ) (Founding member; graduated February 29, 2020)
 * Nano (なの) (Founding member; promoted to Ice Cream Cinderella March 2, 2020)
 * Ren (れん) (Joined late 2019?; left June 2020?)
 * Madoka (まどか) (Joined late 2019?; left June 13, 2020)
 * Ribon (りぼん) (Joined late 2019?; promoted to Ice Cream Cinderella July 14, 2020)
 * Asuka (あすか) (Joined September 3, 2020; left September 16, 2020)
 * Haruka (はるか) (Joined April 4, 2020; left September 29, 2020)
 * Yuika (ゆいか) (Founding member; Left October 13, 2020)