As the girls enjoy the sights of the Yumegahama Summer Festival, Haruka becomes concerned when Yuki seems more focused on enjoying the festival than preparing for the tennis club's training camp. She soon learns from Yuki's fangirls that Yuki injured his elbow during practise, leading him to be convinced that he won't be able to play in the upcoming tournament. As Yuki remains defiant about accepting any support, the fangirls are targeted by Shut, who creates Cheerleader Zetsuborgs. While the other Cures fight, Haruka hears about Yuki's frustration over his injury, firmly telling him not to turn away those who still support him. Realising his own folly, Yuki uses his healthy arm to assist the Cures in taking the Zetsuborgs down. Afterwards, Yuki apologises to those he insulted, who encourage him to just try his hardest.