Rimuru is building a dungeon in preparation for the upcoming festival. It will feature treasure chests containing weapons made by Kurobe, and Veldora will inhabit the deepest floor as the final boss. Then Milim suddenly shows up with a suggestion...
They could turn into 
magisteel ore in no time?
فقد تتحوّل إلى خام فولاذ سحريّ
خلال فترة قصيرة؟
Ah, du meinst, dass es sich
bald in Magieerz verwandeln sollte?
Quizás se transformen
en magiacero enseguida, ¿no?
Quizás se transformen
en magiacero enseguida, ¿no?
… il se changerait en minerai magique
en un rien de temps ?
Potrebbe trasformarsi
in minerale magico in tempo zero!
Em pouco tempo, tudo se transformaria
em minério de magiaço?
И оно может превратиться в магжелезо
и магруду?