TellUs

 is a Japanese idol group that was formed on October 1, 2020 under Rocket Base with a concept of the members being researchers of various subjects. They debuted in 2021.

The group is an ambassador of Hayakawa Publishing and currently has a weekly Youtube variety show.

Current Members

 * Ibuki Saki (伊吹咲希) (Founding Member)
 * Kuroki Shino (黒木信乃) (Founding Member)
 * Kojima Anzu (小島あんず) (Founding Member)
 * Mochizuki Mao (望月麻央) (Founding Member)
 * Yukishiro Mami (幸城まみ) (Founding Member)
 * Hiiragi Yuu (柊木釉羽) (Joined October 2022)
 * Hitsuji Mei (日辻めい) (Joined October 2022)

Former Members

 * Mizusawa Karen (水澤花蓮) (Founding Member; Graduated late 2021)
 * Kato Kurumi (加藤くるみ) (Founding Member; Graduated February 2022)
 * Takimoto Coto (滝源こと) (Founding Member; Graduated February 2022)
 * Sakuma Reika (咲間玲花) (Founding Member; Graduation date unknown)
 * Kanzaki Maina (神崎舞菜) (Founding Member; Graduated April 2023)