Iruma, Asmodeus, and Clara end up in the Misfit Class. As the name suggests, the class is filled with a bunch of misfits and Sabnock Sabro, who wants to become the next Demon King, declares Iruma his rival. Their classes start and their first lesson is a flying race. The race was to take place in the Warbling Valley and the Cutthroat Valley. Apparently, there’s also a demon bird that lives there...
And then there's the 
Cutthroat Valley course!
!وهنالك مسار الوادي الدمويّ
Und dann gibt’s noch den Sägetal-Weg!
¡También está la ruta del Valle Asesino!
¡También está la ruta del Valle Asesino!
Vous irez plus vite
par la vallée de Kanakiri,
Oppure c'è la strada che taglia 
la Valle del Tagliagole!
E há o caminho do vale degolador!
А ещё есть долина Головорезов!