In 2019, she won the Best New Actress Award with Manaka Iwami, Coco Hayashi, Rina Honnizumi, and Kaede Hondo.
[2] She became interested in entertainment at an early age; when she was three years old, she began taking piano lessons.
[3] Kusunoki made her debut as a voice actress in 2017, playing a background role in the anime series Eromanga Sensei.
[9] In the same year, she also became a part of Konami's media mix project called BandMeshi♪ (バンめし♪), with her voicing the guitarist Yokaze Tsuyuri.
[14] In 2021, Kusunoki was diagnosed with a congenital disorder that caused her to have a tendency to feel pain and numbness when performing dance and other strenuous activities that involve large movements.
's official website also announced she would retire from voicing Setsuna Yūki and Nana Nakagawa on March 31, 2023, due to the difficulty of her taking part in stage performances.
[18] On March 25, 2023, the franchise announced that Coco Hayashi would succeed the role of Setsuna starting April 1, 2023.