The old, distinguished girls’ boarding school had been replaced by a brand new, gleaming women’s academy. The main characters are Sayako and Atsuko. They love each other. However, Atsuko’s sister teaches at the school, Atsuko doesn’t want the sister to know about her romantic relationship with Sayako. The schoolgirls will have to fight with the evil monster, who attacked their school and grabbed the girls to fuck them with their tentacles.