Extreme summer heat is ravaging Tempest. Rimuru and crew visit a lake they've been told lies beyond the forest, and they change into swimsuits to start having fun... but Shion and Shuna seem dissatisfied with Rimuru's swimsuit. Veldora watches the gang from inside Rimuru's body as he plays a game of shogi with Ifrit. As the Storm Dragon, one who has never experienced swimsuits or water play, he struggles to understand what all the excitement is about...
I never knew there was a great 
place like this beyond the forest!
!لم أكن أعلم بوجود مكان رائع كهذا خلف الغابة
Dass man hinter dem Wald
so ein schönes Fleckchen finden kann.
Si j’avais su qu’au-delà de la forêt,
un si bel endroit existait…
Chi immaginava che ci fosse 
un luogo così bello nella nostra foresta!
Nem sabia que tinha um lugar
tão bom deste lado da floresta!
Кто ж знал, что в нашем
лесу есть такая красота!