On today's Pre Sousenkyo event three JKT48 members, Shinta Naomi, Riskha Fairunissa and Lidya Maulida are announces their graduation from the group. They were from 2nd generation and Team KIII all joined in 2012.
Regarding the reason, Naomi wants to focus on her talent in improve to keep exist in entertainment industry. While Lidya need to focus on study and Ikha already decide to switch to the Advertising.