24o'clock

 was an idol group that was formed in March 2018. They were a sister group of Sakura Cinderella and they announced their disbandment on January 23, 2020.

Final Line-Up

 * Miwa Haruka (美和花樺)
 * Irie Hona (入江ほ菜)

Former Members

 * Yumesaki Kaya (夢咲かや) (Graduated July 2018)
 * Oshima Hikari (大嶋ひかり) (Transferred to Sakura Cinderella in October 2018)
 * Fujisaki Hana (藤咲はな) (Graduated April 2019)
 * Takanashi Nanase (小鳥遊七星) (Graduated April 2019)
 * Shinosaki Sena (紫乃崎星那) (Graduated August 2019)
 * Arai Nana (新井那奈) (Graduated August 2019)
 * Ayano Maria (文乃万里愛) (Graduated September 2019)
 * Meari (メアリ) (Graduated December 2019)

Singles

 * [2018.12.26] Crazy Game
 * [2019.06.26] Thunder Clap