The Caerula Adamas plot a way to destroy the mysterious Battle Lovers. They also want to destroy the Defense Club, so as to cut down on club expenses. Thus, they declare that if the club members' scores on their final exams do not meet the average, the club will be dissolved. The Defense Club reluctantly gets to studying. Meanwhile, the student council also tries to scout the financially savvy Naruko to be their treasurer. When Gero offers him a salary during negotiations, Naruko casually agrees to leave the Defense Club. Soon, a monster appears, and the four remaining Battle Lovers must struggle to defeat it themselves.
But isn't Kurotama Bath's selling point 
that it runs off a free-flowing hot spring?
Aber ist das Besondere am Kurotama-Bad nicht,
¿Pero el atractivo de los Baños Kurotama 
no eran sus aguas termales naturales?
Pero ¿el atractivo de los Baños Kurotama 
no eran sus aguas termales naturales?
Mais ici,
Ma il punto forte dei bagni Kurotama non è che
 l'acqua sgorga da una fonte naturalmente calda?
Mas não é aqui, na Casa de Banho Kurotama, 
que tem uma fonte natural de água quente?