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...
Then it spits up her skin and
 disguises itself as her.
.ثم تُخرج جلدها وتصبح هي
Und dann ihre Haut ausgespuckt
und ihre Gestalt angenommen wird?
Luego escupe la piel
y se convierte en ella.
Luego escupe la piel
y se convierte en ella.
Et seule sa peau est recrachée.
Poi sputa la sua pelle e diventa lei.
Aí ele cospe a pele dela e se torna ela.
А потом антарктидец выплюнул кожу и 
влез в неё.