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?
D-Don't tell me that's the golden
sign of the Demon King...
...لـ-لا تقل لي أنّ تلك الإشارة الذهبيّة لملك الشياطين
U-Unmöglich … Das ist der goldene Ring Salomons …
Das Zeugnis des Dämonenkönigs!
¿No será la señal dorada
del Rey Demonio?
¿No será la señal dorada
del Rey Demonio?
N-Non dirmi che è il sigillo dorato
 del Re dei Demoni...
Não me diga que é o sinal
dourado do Demônio Rei...
Н-неужели это
золотой знак Князя Тьмы…