SAIGO NO BANSAN

 is an idol group that will dissolve after 1000 days. They were formed on March 8, 2021.

From August 1 to September 22, 2021, the members competed to be promoted to regular members. The results were announced on September 23, and those who did not make it to the top 13 graduated from the group.

On December 12, 2021, it was announced that their lastest system would be ending on December 26, 2021. The group resumed activities on February 1, 2022 with a new system.

The group will disband on December 2, 2023, on their 1000th day of activity.

Current Members

 * Kubo Haruka (久保はるか) (Founding Member; Graduated December 26, 2021, Rejoined February 1, 2022)
 * Saito Airi (斎藤愛理) (Founding Member; Graduated December 26, 2021, Rejoined February 1, 2022)
 * Suzuki Ayaka (鈴木彩夏) (Founding Member; Graduated December 26, 2021, Rejoined February 1, 2022)
 * Kotoishi Reina (琴石玲菜) (Joined February 1, 2022)
 * Gunji Erisa (郡司英里沙) (Joined February 1, 2022)
 * KOU (Joined February 1, 2022)
 * Fujita Suzuka (藤田涼花) (Joined February 1, 2022)

Former Members

 * Terajima Yumi (寺嶋祐未) (Founding Member; Left May 1, 2021)
 * Kuon Moyuka (久遠もゆか) (Founding Member; Left May 2, 2021)
 * Aomomo (あおもも) (Founding Member; Left May 2021)
 * Yamazaki Mana (山﨑まな) (Founding Member; Left July 31, 2021)
 * SUI (Founding Member; Graduated September 23, 2021)
 * Kokubun Yuka (國分優果) (Founding Member; Graduated September 23, 2021)
 * Yagawa Miu (矢川美雨) (Founding Member; Graduated September 23, 2021)
 * Kimino Seina (紀海野聖南) (Joined July 17, 2021; Graduated September 23, 2021)
 * Murakami Rura (村上瑠藍) (Founding Member; Fired October 29, 2021)
 * Watanabe Rika (渡辺りか) (Founding Member; Fired October 29, 2021)
 * Ito Yuki (伊藤有希) (Founding Member; Withdrew December 5, 2021)
 * Kawai Yusa (川井優沙) (Joined July 17, 2021; Withdrew December 14, 2021)
 * Himekawa Yurie (姫川友梨恵) (Founding Member; Withdrew December 26, 2021)
 * Someya Nana (染谷菜々) (Founding Member; Graduated December 26, 2021)
 * Seto Arisa (瀬戸ありさ) (Founding Member; Graduated December 26, 2021)
 * Kurabe Yuka (倉辺ゆか) (Founding Member; Graduated December 26, 2021)
 * Hinami Mirai (日南みらい) (Founding Member; Graduated December 26, 2021)
 * Watanabe Moe (渡辺もえ) (Joined July 13, 2021; Graduated December 26, 2021)

Mini Albums

 * [2021.08.01] Owari no Hajimari (終わりの始まり)