[4] She made her entertainment debut as a child actress in 2007, starring in the musical Coco Smile: Asu e no Rock 'n' Roll.

[6] She was chosen as one of the members performing on the group's debut single "Guruguru Curtain", released on February 22, 2012.

[11] In 2015, Ikuta appeared in the Fuji TV drama Zannen na Otto as a high school girl who dreams of becoming a pianist.

In early 2021, It was announced that Ikuta would play Éponine in Les Miserables in spring till autumn 2021.

In 2024, it was announced that Ikuta would play Fantine in Les Miserables from late December 2024 till mid June 2025.

[25] On February 1, her official website was opened (with a fan event on 19 to commemorate the occasion),[26] while her Nogizaka46 blog posts were deleted.

[27] Ikuta's first post-Nogizaka46 acting role was as Mio Mukai in the Fuji TV series Gossip: #Kanojo ga Shiritai Honto no 〇〇.

On May 15, 2024, it was announced that Ikuta will star in her first lead role in a public TV drama, Subarashiki Kana, Sensei!.