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.
正体不明のバトルラヴァーズを抹殺せんと画策する征服部ことカエルラ・アダマス。ついでに部費支出削減のため、防衛部も始末しようと「期末テストで成績が平均に満たない場合は廃部」という通知を突きつける。しぶしぶ勉強する防衛部の面々。生徒会は金融事情に精通した鳴子を経理担当にスカウトする。交渉に出向いた下呂から給与額を提示され、あっさりと防衛部を去る鳴子。４人となったバトルラヴァーズは、出現した怪人によって苦戦を強いられる。
O Clube de Defesa é informado que será desfeito caso seus integrantes não tirem boas notas. E Io é convidado para ser tesoureiro do Conselho Estudantil.
征服部Caerulas Adamas为了抹杀正体不明的Battle Lovers而制定对策。为了对付防卫部，顺便为了减少部费支出，他们向防卫部提出“如果期末考试的成绩不能达到平均分的话就要废部”。防卫部众人只好不情愿地开始学习。学生会打算把精通金融方面的鸣子挖去做经理，在前去交涉的下吕提出了支付的金额之后，鸣子很干脆地离开了防卫部。变成了4个人的Battle Lovers面对出现在眼前的怪人陷入了苦战。
