As Summer comes to a close, Eren decides that she wants to attend school with Hibiki and Kanade, later getting admitted thanks to Otokichi. Meanwhile, the Fairy Tones attempt to retrieve the Notes that the Minor Trio stole from them, despite being exhausted. Hibiki and Kanade give Eren some tips for her first day of school, though she ends up taking some of them too seriously and faints after spending all night practising, though she awakens to find she has made many new friends. Just then, the Minor Trio create a First Aid Kit Negatone, and the Fairy Tones are too weak to save the Cures, who are instead aided by Cure Muse. After the battle, as the Fairy Tones confess about their Notes being stolen, Hibiki once again hears the voice, revealed to be that of the Crescendo Tone, who instructs her and the others to come to Major Land in order to help the Fairy Tones.
もうすぐ新学期が始まろうとしていた。エレンも音吉のおかげで同じ中学に通えることになった。嬉しそうなエレンだったが、かなり緊張している。そこで響たちは、みんなで自己紹介の練習をすることに。