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.
To make sure I never allow myself 
to become complacent again...
...لأحرص على ألّا أسمح لنفسي بالرّضوخ ثانية
Damit es nie wieder zu so einer Tragödie
durch meinen Eigensinn kommt.
Para no permitir
que vuelva a relajarme tanto.
Para no permitir
que vuelva a relajarme tanto.
Et ce, afin de ne plus me permettre
d’être aussi négligent à l’avenir.
E devo farlo per ricordare a me stesso 
che non devo mai più sentirmi troppo tranquillo.
Pra que eu também não amoleça mais
pelo que vier no futuro.
Чтобы больше никогда…
не позволять себе расслабляться.