December reveals Ros's secret.  The party is shocked and glad to hear it.  But Ros seems unhappy, and December thinks he knows why.  He says that if Ros uses his power it will revive the Demon King, and so he orders Juli to attack again.
So we can defeat them 
and seal him again!
Entonces, podemos derrotarlos a todos 
y sellar al rey demonio nuevamente.
Pues vencemos a todo el mundo y volvemos a sellar el Señor del mal.
Então é só acabar com 
ele e o selar de novo!