Since then, Okada has become part of AKB48's main lineup and performed in all the title tracks of their singles, as well as her first solo song "Coin Toss" in the AKB48 album Thumbnail (2017). On February 22, 2017, Okada announced that she would be holding a concurrent position in the new sister group STU48 and serve as the group's captain; she would later cite this appointment as what solidified her decision to continue in the entertainment industry. In July, Okada placed ninth in the 9th AKB48 Group general election.
