Hikari is a young girl who dreams of one day competing with her idol, the Bulgarian gymnast, Diliana Georgieva. She will have a healthy rivalry with her teammate, Hazuki. She will manage to improve in gymnastics, with the help of a high school classmate, Takaaki, to whom little by little, she will begin to feel attracted. His qualities are a great sense of observation for rhythmic gymnastics that will allow him to improve day by day. In addition, it brings a freshness and energy to the sport that makes it stand out above its rivals.