Seiya and the others have been defeated by Tenjo Tenge and none of them seem to be able to work up much enthusiasm for anything. Principal Kuma Kocho appears before them and suddenly tells them they'll all be working at the Sound Carnival as staff.
It's because you worked 
hard that you feel upset.
.تشعر بالحزن لأنك عملت بجدّ
Weil du so hart gearbeitet hast,
ist das jetzt frustrierend für dich.
Te esforzaste, por eso tienes rabia.
Te esforzaste, por eso estás frustrado.
C’est pour ça
que cette défaite te frustre.
Ti sei impegnato tanto ed è per questo che ti turba.
Você trabalhou tanto,
e por isso ficou chateado.
Ты трудился, отсюда и обида.