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...
You were thinking evil 
thoughts again, weren't you?
كانت تراودك أفكار شرّيرة، أليس كذلك؟
Du hast schon wieder
irgendwas ausgeheckt, oder?
Ya estabas pensando
en alguna otra diablura, ¿no?
Ya estabas pensando
en alguna otra trastada, ¿no?
Tu mijotais encore un truc pas net,
hein ?
Un'altra delle tue idee malvagie, eh?
Estava pensando em algo
maligno de novo, né?
Признавайся, опять что-то плохое задумал?