Mion returns to Pretty Top, which excites Aira and irritates Rizumu. Aira and Rizumu are offered to compete in the Summer Queen Cup for the Rare Wedding Dress, but because it is a duo tournament, only one of them will be chosen to perform with Mion. With the new Bato Pon, Aira and Rizumu each put on separate performances with Mion for the Tanabata, but Mion outperforms both of them and saves them from making mistakes, ending their performance with the Prism Jump "Heartbeat Memory Leaf." After she confronts the two, both girls realize they still have much to learn in becoming professionals.