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...
The adventurers will spread rumors 
about the labyrinth all on their own,
سينشر المُغامرون الإشاعات عن المتاهة
،من تلقاء أنفسهم
Die Erzählungen über das Dungeon werden
sich dann via Mundpropaganda verbreiten
Los aventureros difundirán
los rumores del laberinto
Los aventureros extenderán
los rumores del laberinto
Tout naturellement,
ils parleront du donjon autour d’eux,
Gli avventurieri spargeranno la voce,
facendo pubblicità gratuita all'attrazione.
Os próprios aventureiros
farão propaganda do labirinto,
Слухи о моём подземелье
быстро разойдутся по всему миру…