Sureness

 (シュアネス), formerly known as Unsure (アンシュア), is currently a six-member idol group formed on January 7, 2021.

They made their stage debut on July 22, 2021.

Current Members

 * Yamashita Karin (山下かりん; ) (Founding Member)
 * Otoba Mio (乙葉美桜; ) (Founding Member)
 * Uemura Rana (上村らな; ) (Joined on June 20, 2021)
 * Tsukino Ami (月野あみ; ) (Joined on June 20, 2021)
 * Kohane Airi (小羽あいり; ) (Joined on June 20, 2021)
 * Amane Rino (天音りの; ) (Joined on June 20, 2021)

Former Members

 * Seto Sakura (瀬戸さくら; ) (Founding Member; Withdrew on January 23, 2021)
 * Mori Manami (もりまなみ; ) (Founding Member; Left on January 30, 2021)
 * Maeda Mina (前田みな; ) (Founding Member; Graduated on February 2022)
 * Fujikawa Luna (藤川るな; ) (Founding Member; Graduated on February 4, 2023; Leader)

Digital Singles

 * 1) [2022.08.01] Yume Ou Bokura (夢追う僕ら)
 * 2) [2022.08.08] Mirai e Tsunagu Setsuna (ミライヘツナグセツナ)
 * 3) [2022.08.15] Soredemo Kimi ga Suki (それでも君が好き)