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...
From now on, you're free 
to unleash it all you want.
من الآن فصاعداً، يمكنك إطلاق
عنانها كما تشاء
Ab sofort musst du dich nicht
mehr zusammenreißen. Lass alles raus.
A partir de ahora
no necesitas contenerte más.
A partir de ahora
no necesitas contenerte más.
Lâche-toi !
Désormais, tu n’as plus à te retenir.
Da oggi in poi potrai rilasciarne
quanta ne vuoi e quando vuoi.
De agora em diante, pode
liberar tudo o que quiser.
Больше терпеть не нужно,
высвобождай сколько хочешь!