Secret Base Kouhosei

 (しーくれっとべぃす候補生) is the trainee idol unit for the agency Secret Base. They debuted on April 8, 2023.

Members

 * Shirahana Sakura (白花桜)
 * Mito Momoka (美桃ももか)
 * Kosuzu Mio (小鈴みお)
 * Ayase Nico (綾瀬にこ) (Joined April 27, 2023)
 * Tosaki Neon (兎咲ねおん) - Support Member