Ogino Ayaka

 (荻野あやか) is a founding member of BOKU ha KIMI no KAKERA. (As AYAKA WORLD CHAOS; アヤカ・ワールドカオス), a former member of the temporary unit Minichu, and a former founding member of KATACOTO * BANK and 4864..

Her concurrency in KATACOTO * BANK ended on February 5, 2022.

She graduated from 4864. on March 5, 2023.

Digital Singles

 * Brand New Beat
 * Time goes on
 * Promise
 * Daisy

Digital Singles

 * Tairyo*Recycle
 * Kimidake☆Revolution
 * Update Kanryou!!!
 * Zettai Oshiteki Daisakusen
 * Asanagi Semishigure

Digital Singles

 * Haruiro no Kiseki
 * Bakutan Yowamushi's
 * Haikei, Kyou Made no Yowamushi na Watashi e.
 * Jump Up!
 * Tsuyogari
 * Nainoni.
 * Shuwashuwanda
 * Jonai Survival

Singles

 * We are "FreeK"