Maintenance

 (メンテナンス) is an idol group made up of former Idoling!!! members, with support members formerly from other idol groups.

Members

 * Sakai Hitomi (酒井瞳)
 * Kawamura Yui (かわむら ゆい)
 * Asahi Nao (朝日奈央)
 * Furuhashi Mayu (古橋舞悠)
 * Sekiya Mayu (関谷真由)
 * Sato Michaela (佐藤ミケーラ)

Support Members

 * Ito Maki (伊藤麻希)
 * Kato Sayaka (加藤沙耶香)
 * Shigemoto Kotori (重本ことり)
 * Kobayashi Yayoi (小林弥生)

Kenshuusei

 * Payton Naomi (ペイトン尚未)
 * Suzuki Karen (鈴木楓恋)
 * Hosoi Hana (細井華)
 * Tanabe Manaha (田辺真南葉)