When the school's public announcement mentions the rumors of a mermaid, Manatsu and her friends discuss folklore concerning mermaids, with Laura stating of their singing talents. Later on, the four girls meet members of the broadcasting club and offer their aid. On the day of the broadcasting, one of the hosts is unable to join the others, forcing Manatsu and her friends to host the broadcast instead. The four girls end up struggling to carry on the show. Thankfully, Laura salvages the situation by pretending to be an interviewee. Meanwhile, Chongire summons a Zenzen Yaraneeda to attack a supermarket, forcing the four girls to leave Laura to finish the job while they head off to transform and confront the monster. All four Cures struggle to engage the foe until Laura finishes the broadcast and hurries over to assist them in defeating the monster. The next day, the broadcasting club receive requests of wanting to hear Laura sing again, much to the girls' joy.