While Mion trains with Aira, she admits that she had selected her to test Rizumu's resolve. After noticing Rizumu has not given up her dream, Mion arranges Aira and Rizumu to enter the Summer Queen Cup together. Before their performance begins, they encounter Serena Jounouchi and Kanon Toudou, two Prism Stars from the Kansai region, who taunt them...