The film opens on Dino Earth fifteen years ago with a village elder telling the story of how Princess Freezia sealed away a pair of evil Bakuryuu with the Holy Sword, encasing them in ice. If the evil creatures are ever released from their prison, the world will end in a grip of fear "encased in white".

Hanaoka high school is an all girls' school, and the girls were pretty excited when they heard that boys were admitted into their high school. Smart and elegant boys, that's in their fantasy. However, in reality, the boys who were actually admitted are from the countryside and not smart at all, leave alone being elegant. And in fact, two of them are dirty perverts...