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...
I can't sit around taking breaks after 
hearing an amazing idea like that!
لا أستطيع إضاعة الوقت في الاستراحات
!بعد سماع فكرة مذهلة كهذه
Pah! Aber das ist so gut, da kann
ich nicht anders, als direkt anzufangen!
Come faccio a riposare
dopo aver saputo una roba simile?!
Depois de ouvir uma ideia incrível
como essa, nem quero descansar!
Будто я смогу усидеть на одном месте,
когда услышала такие грандиозные планы!