Renjitsu oto Koiro

 (錬日oTo個色) is an idol group that debuted in August 2020. Their concept is "a self-centered group of individuals", where each member pursues her own goals.

Current Members

 * Hoshino Maimu (星野まいむ; ) - Leader
 * Rinda Rin (凛田凛; )
 * Minami Karen (南かれん; ) (Joined October 2020)
 * Suzumiya Chimu (涼宮ちむ; ) (Joined July 2021)
 * Sato Niko (佐藤にこ; ) (Joined November 5, 2022)
 * Asahina Ruri (朝日奈るり; ) (Joined November 5, 2022)
 * Shizune Maya (静音まや; ) (Joined May 10, 2023)

Former Members

 * Masumi Yuno (真澄ゆの) (Left pre-debut May 2020)
 * Suzuki Chiita (鈴木ちぃた) (Left pre-debut June 2020)
 * Rei Raira (怜らいら) (Left May 2022)
 * Nanase Saya (七瀬さや) (Left October 2022)
 * Hanano Shika (華乃詩歌) (Joined October 2020; left October 2022)

Mini Albums

 * [2022.04.23] DNA
 * [2022.04.23] RENKOI

Trivia

 * The group name was adapted from the sentence "unique maidens who train every day" (日々鍛錬する個性豊かな乙女達). "Ren" (錬) means to train while "jitsu" (日) means day, "oto" is an abbreviation of "otome" (乙女) meaning maiden, and "Ko" (個) is taken from unique (個性豊) while "iro" (色) means color. The group name itself isn't a coherent phrase, but its meaning can be pieced together to convey the original sentence.
 * They were originally planned to debut in April 2020, but it was postponed due to the COVID-19 pandemic.