A new student, the Antarctican Quetzalcoatl Sassassul, suddenly transfers into the girls' school one day, much to the intrigue of everyone in the class. But for some reason, Himeno seems to have experienced some sort of childhood trauma involving Antarcticans. The new student is as kind and friendly as can be, but Himeno just can't shake her fear...

Meanwhile, everyone in the class has lots of questions for Sassassul...
In the case of an American research 
ship being sunk in Antarctic waters,
بقضيّة غرق سفينة بحث
،أمريكية في المياه الأنتاركتيكيّة
Die Versenkung eines amerikanischen
Forschungsschiffes in antarktischen Gewässern
Tras el hundimiento del barco
investigador hundido en la Antártida
Tras el hundimiento del barco
de investigación hundido en la Antártida
Un navire océanographique américain
a été attaqué sur l’océan austral.
Dopo l'affondamento nelle acque dell'Antartide
di una propria nave di ricerca,
Depois de um navio de pesquisa americano
ter sido afundado em águas antárticas,
В водах Антарктиды затонуло 
американское исследовательское судно.