When they learn the truth about the current situation, the gang realize that they must go into battle. And so, too, does Kagura.
A monster's sword cannot 
cut another monster.
.لا يمكن لسيف وحشٍ أن يقطع وحشًا آخر
La espada de un monstruo
no puede matar a un igual.
A espada de um monstro não é 
capaz de cortar outro monstro.