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...
It wasn't easy to recreate 
this beautiful blue!
!لم يكن من السّهل صنع هذا اللّون الأزرق الجميل
Es war echt schwierig dieses frische Blau
ordentlich hinzubekommen.
Fue complicado conseguir
este tono de azul.
Ha sido complicado conseguir
este tono de azul.
Ça n’a pas été de la tarte
d’obtenir cette couleur !
Ci ho messo una vita per riprodurre questo azzurrino!
Não foi fácil recriar
este tom de azul tão vivo!
Не так уж и просто
 было сделать его таким!