The Misfit Class is in the middle of a flying race in order to determine their ranks. Since Iruma is human, he can’t fly, so he’s riding on the back of the giant baby demon bird, but it seems to be flying off course. Meanwhile, Sabnock decides to go through the treacherous Cutthroat Valley and ends up having to battle it out with the Guardian there. Sabnock is obsessed with becoming the next Demon King, but why is he so obsessed? Are Iruma and Sabnock going to be able to make it out of Cutthroat Valley alive?
The school Iruma is attending
is the demon school Babyls.
المدرسة التي سيرتادها إيروما 
.هي مدرسة شياطين، بابيليس
Der Mensch Iruma wurde ein Schüler
der Dämonen-Schule Babyls
Siendo humano, Iruma tendrá que asistir
a la escuela demoníaca Babyls.
Siendo humano, Iruma tendrá que asistir
a la escuela demoníaca Babyls.
l’établissement
que doit fréquenter le jeune humain
L'istituto che Iruma dovrebbe frequentare
 è la scuola per demoni di Babyls.
A escola para a qual Iruma foi, era
uma escola de demônios, Babyls.
Школа находится в Преисподней, там учатся
демоны, а называется она «Бэбилс».