In order to come to terms with his own negligence and revive Shion, Gobta, and his other fallen comrades, Rimuru reveals that he used to be a human. But his allies think nothing of it and accept him regardless, as if it's the natural thing to do. Filled with gratitude for the warm, accepting environment he's in, Rimuru turns his focus to the army from Falmuth. He entrusts Benimaru and the others to destroy the devices that are generating the enemy's Prison Field while Rimuru himself sets out to attack the advancing army and use them as nourishment to become a Demon Lord.
It was our own negligence that allowed 
those scoundrels to have their way.
كان إهمالنا هو ما سمح لأولئك الأوغاد
أن يفعلوا ما يحلو لهم
Wir sind dafür verantwortlich, dass diese
Schweine so mit uns umspringen konnten.
Permitimos que esos rufianes ganaran
porque nos volvimos perezosos.
Permitimos que esos rufianes ganaran
porque nos volvimos perezosos.
Si ces insolents ont pu se jouer de nous
comme ils l’ont fait,
La nostra negligenza ha permesso 
a quelle canaglie di fare ciò che volevano.
Se aqueles meliantes agiram como bem
entenderam, foi pela nossa negligência!
Наше халатное отношение к обязанностям
 привело к разгулью негодяев в городе!