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...
Maybe the difficulty 
level's a bit too high...
...ربّما مستوى الصّعوبة مرتفع زيادة عن اللّزوم
Vielleicht ist das so auch zu hart.
Quizás es demasiado complicado.
Quizás es demasiado complicado.
Je t’en demande peut-être trop.
Dici che stiamo esagerando?
Talvez o nível de dificuldade
seja alto demais...
А не слишком ли сложным?