[1][2] In 2019, Kawai made her acting debut in the short film Yodominaku, Yamanai.

[9][10] This TV series had a significant impact, and after its broadcast ended, she was cast in commercials for well-known companies such as Shiseido, Uniqlo, and Suntory.

When she was in the third grade, she started to attend dance studio with her younger sister.

As she continued dancing, she realized the joy of "expressing" and decided to become an actress.

[13] Kawai is good friends with fellow actress Ai Mikami, as both of them attended Nihon University College of Art together.