Her solo single "Maji de Koi Suru 5 Byō Mae/Ichigo Iro no Kimochi", on the Watashi no Yasashikunai Senpai soundtrack, reached #46 on the Oricon chart.
The actresses she idolizes are Aoi Miyazaki, Yui Aragaki and Kou Shibasaki.
[6] Early 2016, it was announced that Kawashima would become a regular alongside Masu Taichi on the television program ZIP!.
"[7] She receives her first leading role as a voice actress in the 2017 summer anime series, Nana Maru San Batsu.
[8] In December 23, 2024, Kawashima and Olympic competitive swimmer Katsumi Nakamura, jointly announced that they had married.