Mayu Watanabe
Miyawaki participated in the 2014 AKB48 general election and placed 11th overall with 45,538 votes, landing her a position on the A-side for "Kokoro no Placard". In that year's rock-paper-scissors tournament, Miyawaki lost in the 3rd round of the preliminary competition. However, management decided she would share the center position with winner Mayu Watanabe for AKB48's 38th single, "Kiboteki Refrain", and became the first local HKT48 member to center on an A-side single.