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...
Why don't we compromise and 
have Lady Shion wear it?
ما رأيكم بجعل الآنسة شيون ترتديه؟
Wie wäre ein Kompromiss?
Wir lassen Shion den Badeanzug tragen!
¿Y si te lo pones tú, Shion?
¿Y si te lo pones tú, Shion?
Coupons la poire en deux !
Dame Shion n’a qu’à le mettre !
Allora perché non facciamo 
una via di mezzo e lo facciamo mettere a Shion?
Que tal a Shion-san vestir no seu lugar?
Придумал! 
Давайте их примерит госпожа Сион!