Continuously annoyed by Yumoto's brotherly connection to Gora, Haruhiko and Akihiko try to come up with a new plan to destroy the Battle Lovers. Meanwhile, Bernardo, the older of the Italian twins that also recently transferred to Binan, tries to figure out if his brother really hates him as the two have had a rocky relationship recently. Taking advantage of this development, the Beppu twins transform Bernard's brother Alan into the Chest Hair Monster. Thanks to the Battle Lovers, the monster is defeat and Alan and Bernard finally work out their differences.
壮大な御殿で日々アイドルとしてステージを繰り広げる別府日彦・月彦兄弟。時同じく、眉難高校にもう一組の双子、イタリア系ツインズの兄弟がやってくる。別府兄弟と違い、兄弟仲が芳しくない彼らにはいろいろな意味で“深い事情”が隠されていた。血よりも濃ゆ～いイタリア人男子のデリケートな心が、やがて眉難高校に嵐を巻き起こすことに！
别府兄弟小日和小月成为了眉难高校的偶像级人物，他们现在拥有众多的追随者。别府兄弟表面上装作很高兴有这么多人喜欢他们，其实心里却觉得这些人非常麻烦。眉难高校近日又迎来了一对双胞胎，这次是一对来自意大利的双胞胎。与别府兄弟的清爽感不同，这对意大利双胞胎外表非常的浓厚，非常有外国人的特点。
