NMB48 Team BII vice captain Okita Ayaka announced graduation from the group at NMB48 Theater on 20 July 2018, she will stay with the group until the end of September 2018, NMB48 National Tour's Hiroshima Concert will be her final LIVE, Okita Ayaka did not reveal her future plan.

Okita Ayaka is NMB48 1st generation member, she joined the idol group in 2010, her highest General Election ranking was 25th place in the 8th AKB48 General Election, she did not participate in General Election this year.

Note: NMB48 will hold a concert at Ueno Gakuen Hall Hiroshima on 30 August 2018.