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...
If you walk through them without noticing, 
they slice off your head!
،إذا مررت من خلالها دون أن تلاحظ
!فسوف تقطع رأسك
Wenn man unbedarft durchläuft,
ist die Rübe ab!
Si cruzan sin verlos,
¡les cortarán la cabeza!
Si cruzan sin verlos,
¡les cortarán la cabeza!
Si on ne les remarque pas,
on finit décapité !
Se non te ne accorgi e li attraversi,
ti taglieranno persino la testa!
Se passar por eles sem perceber,
eles cortam sua cabeça!
Сунешься по незнанию —
и прощай голова!