Rimuru decides to throw a summer festival resembling the ones held in Japan. The monsters have never experienced a summer festival, but when they hear that it's a party, they go all-in to prepare. All the monsters of Tempest work together and eventually come up with masks, paper lanterns, and even festival floats. On the day of the festival, everyone in the town enjoys piping hot takoyaki, cold shaved ice, yukata, and a Bon dance. In the end, they fill the skies with fireworks as the festival reaches its climax...
A Dryad's running a fortune-telling 
stall at a festival?
درياديّة تدير كشكَ تبصير في مهرجان؟
Dass der Stand der Dryaden
eine Lotterie ist …
¿Una dríade en una tómbola?
¿Una dríade en una tómbola?
Une dryade qui tient une loterie
à un festival…
Non avrei mai pensato che una driade 
avrebbe tenuto una bancarella di oracoli a un festival!
Uma Dríade com uma barraca
de sorteios num festival?
Вот уж не ожидал на фестивале
встретить лотерею от самой дриады…