Niimo

 is an idol group based in Oita. They were formed in September 2012 as a sister group to Chimo.

Current Members

 * Rimu (りむ) - Leader (Joined May 2019)
 * Akira - Sub-Leader (あきら) (Joined May 2019)
 * Miu (みう) (Joined May 2020)
 * Sakurako (さくらこ) (Joined September 5, 2021)
 * Yui (ゆい) (Joined as Research Student June 11, 2022, promoted March 23, 2023)
 * Eari (えあり) (Joined as Research Student June 11, 2022, promoted March 23, 2023)
 * Luna - Research Student (るな) (Joined September 11, 2022)
 * Emiru - Research Student (えみる) (Joined May 6, 2023)
 * Saaya (さあや) - Hiatus (Original member)

Former Members

 * Aika (あいか) (Original member, left February 2013)
 * Nana (なな) (Original member, graduated December 2013)
 * Minae (みなえ) (Joined June 2013, graduated May 2014)
 * Tomoka (ともか) (Original member, graduated September 2014)
 * Mayu (まゆ) (Original member, graduated September 2014)
 * Honoka (ほのか) (Original member, graduated March 2015)
 * Neo (ねお) (Joined March 2014, graduated March 2015)
 * Nana (なな) (Joined January 2015, left March 2015)
 * Chiho (ちほ) - Leader (Original member, graduated March 2015)
 * Yuuri (ゆうり) - Sub-leader (Original member, graduated April 2015)
 * Nanaka (ななか) (Original member, graduated June 2015)
 * Urumi (うるみ) (Joined June 2015, left September 2015)
 * Shiori (しおり) - Leader (Original member, graduated March 2016)
 * Aine (あいね) (Joined June 2015, graduated July 2016)
 * Seira (せいら) (Joined January 2016, left October 2016)
 * Natsumi (なつみ) (Joined June 2015, left ?)
 * Narumi (なるみ) (Joined November 2016, graduated July 2017)
 * Misaki (みさき) (Joined February 2015, graduated August 2017)
 * Nonoka (ののか) (Joined September 2017, graduated October 2018)
 * Miu (みう) (Joined unknown, left December 2018)
 * Shuna (しゅな) (Joined June 2015, graduated March 2019)
 * Ranka (らんか) (Joined May 2017, graduated February 2019)
 * Fuuka (ふうか) (Joined May 2017, graduated October 2019)
 * Mana (まな) (Joined June 2018, graduated December 2019)
 * Haruna (はるな) (Joined May 2019, left June 2020)
 * Mikoto (みこと) (Joined May 2019, left June 2020)
 * Rin (りん) (Joined May 2019, graduated June 13, 2021)
 * Maika (まいか) - Leader (Joined June 2016, graduated July 4, 2021)
 * Miu (みう) (Joined August 2019, graduated November 27, 2021)
 * Haruka - Research Student (はるか) (Joined January 10, 2023, withdrew May 25, 2023)
 * Rion (りおん) (Joined May 16, 2021, graduated May 28, 2023)

Singles

 * [2013.04.06] Let's Fly Away
 * [2013.07.14] Natsukoi Speed (夏恋スピード)
 * [2014.04.26] Master Key (マスターキー)
 * [2014.07.23] Zenryoku Koi Moyou (全力恋モヨウ)
 * [2015.03.11] Ren'ai Vibration (恋愛バイブレーション)
 * [2016.09.13] a love song
 * [2018.09.19] Love Centric (ラブセントリック)