The Beppu Brothers declare outright to the Defense Club that they're the ones who have been sending the monsters, but the Defense Club members just brush them off, spending their days in their usual slow pace while ignoring the brothers for two whole months. The Beppu Brothers, enraged over this slight, choose February 14th as the day they will have their revenge. And so the Valentine's Day grudge match begins!
Sure, but it doesn't seem like 
they're trying to destroy Earth
Aber scheinbar wollen die
nicht wie der Erderoberungsclub
Pero no parece que quieran
destruir la Tierra
Pero no parece que quieran 
destruir la Tierra
Non.
Sì, ma non sembra che stiano cercando
di distruggere la Terra
Claro, mas não parece que eles 
 estão tentando destruir a Terra