Her younger sister, Mirano Kita, is also an individual rhythmic gymnast and has represented Japan at multiple international FIG events.

[4] Kita thereafter spent part of her training time in Russia's famous Novogorsk center for rhythmic gymnastics.

On August 5–7, Kita finished 10th in the all-around behind Olena Diachenko at the 2017 Minsk World Challenge Cup.

On August 30–September 3, Kita and Kaho Minagawa represented Japan in the individual competition at the 2017 World Championships in Pesaro, Italy; she qualified in the hoop final and finished in 7th place.

However, she was forced to return to Japan for a time due to pain in her lower back, which was caused by an avulsion fracture.

[8][9] In 2021, Kita was chosen to represent Japan at the Olympic Games in Tokyo alongside teammate Chisaki Oiwa.

[10] She placed eleventh in the overall individual ranking, being 0.300 points behind the Ukrainian Khrystyna Pohranychna, and was the first reserve for the all-around final.