In 2016, she made a cameo appearance in the film My Tomorrow, Your Yesterday, starring Sota Fukushi and Nana Komatsu.

Kiyohara gained further recognition when she appeared in the final part of the Chihayafuru live-action trilogy, Chihayafuru Part 3, alongside the likes of Suzu Hirose and Shuhei Nomura.

[3] In May 2021, Kiyohara appeared as the heroine in NHK's 104th asadora, Okaeri Mone.

In October 2021, she starred alongside Takeru Satoh and Hiroshi Abe in the film In The Wake.

For her role, she was named the Best Supporting Actress at the 45th Japan Academy Film Prize.