Nozomi Kaminashi walks away from competitive gymnastics to chase easy money in Keijo, a professional sport where women in swimsuits knock each other off floating platforms using only their hips and chests. At the training academy she rooms with fellow hopefuls: Sayaka Miyata, a former judo champion, plus Non Toyoguchi and Kazane Aoba. Together they discover that a sport built on absurd rules still demands real athletic skill. Elite-class star Mio Kusakai sets the bar Nozomi has to clear to make a name for herself in the ring.