Omusubi Korokoro

 (おむすびコロコロ) is a sub-unit of IDOL COLLEGE. It was announced on May 7, 2022.

Members

 * Fujishiro Ririka (藤代梨々花)
 * Shimada Kotone (島田詩音)
 * Takahashi Hime (高橋媛)
 * Tsutsumi Karin (堤可鈴)
 * Takakuwa Riu (高桑凜羽)