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.
the Defense Club will be
left with four members.
geschafft wird, weil es nur
noch vier Mitglieder geben wird.
el Club de Defensa se quedará 
solo con cuatro miembros.
el Club de Defensa se quedará 
solo con cuatro miembros.
leur club n’aura plus
que quatre membres.
il club di difesa rimarrebbe 
con soli quattro membri.
o Clube de Defesa 
vai ficar só com quatro membros.