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...
We're told that Lord Carrion will be 
attending this festival you're hosting.
قيل بأنّ كاريون-ساما سوف يحضر
هذا المهرجان الّذي تستضيفه
Bei dem Fest, das Sie veranstalten lassen,
Al parecer, el señor Carrion
acudirá a su festival.
Al parecer, el señor Carrion
acudirá a vuestro festival.
Sire Karion sera présent
lors du festival que vous organisez.
Al festival che state organizzando
Rimuru-sama, nós soubemos que Carrion-sama
visitará este festival que está organizando.
Нам сообщили, что Князь Карион
приглашён на ваш грандиозный фестиваль.