However, the auditions were postponed, so Iwata continued to participate and was selected to join the group as a 12th kenkyusei (trainee) in April 2011.

[3][4] In December 2011, Iwata auditioned for a role in the TV animated series AKB0048 and was selected to play the main character, Nagisa Motomiya.

[8] In July 2012, Iwata was selected to host a TV program on NHK as part of a series to support the areas affected by the 2011 Tōhoku earthquake and tsunami, which included Sendai.

[13] She played the role of Delphi Diggory in Harry Potter and the Cursed Child in Tokyo from June 2022 to May 2023.

[17] Iwata attended the Faculty of Arts at Nihon University and graduated from Department of Photography in March 2023.