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.
We are to blame for relying too 
heavily on you to protect us.
نحن المُلامون لاعتمادنا الزّائد عليك لحمايتِنا
Wir wurden nachlässig, weil wir dachten,
dass Sie uns eh schützen würden.
Esperábamos que siempre estuviera aquí
para protegernos.
Esperábamos que siempre estuviera aquí
para protegernos.
Nous étions trop habitués
à ce que vous nous protégiez.
Ci siamo sempre appoggiati troppo
al pensiero che voi, Grande Limur,
Nós todos estávamos convencidos de que
sempre estaríamos sob sua proteção.
В том, что привыкли всецело полагаться 
на вашу защиту… виноваты только мы.