第 30 集: 小三人組調查治療寶箱，而響在考試失利後面臨音樂上的困境。

30

The Minor Trio learn about the Healing Chest and decide to investigate. Meanwhile, as Hibiki becomes downhearted after failing an English exam, mysterious musical incidents begin to occur around her. Afterwards, the Minor Trio create a Negatone from Hibiki's exam paper, which puts the Cures into an English test, attacking Hibiki for every question she gets wrong. The Cures do manage to defeat the Negatone. (Source: Wikipedia)