Yufuin's inspiration leads the Defense Club decides to go on a training camp to the ocean on . Meanwhile, the three student council members head to a beach resort in a limousine. The beach has bright sun and white sand, but there's something a little off about it. A strange feeling starts hovering around the group's members...
I use an electric frog toothbrush!
Ich benutze eine elektrische Zahnbürste!
¡Yo uso un cepillo eléctrico de rana!
¡Yo uso un cepillo eléctrico de rana!
Io uso uno spazzolino da denti elettrico 
con una rana!
Eu uso uma escova de dentes elétrica de sapo!