Summer has come to Tempest. When he learns that summers here weren't always this hot, Rimuru begins to fear that the change was his fault. Shuna and Shion have their own unique way to keep cool, and Rimuru tries to think up some fun summer activities... but bug-catching turns into bug-hunting when the bug he's after turns out to be enormous, and a game of shooting water pistols gets out of hand when Rimuru himself becomes a water cannon. With everything on a completely different scale in Jura, every activity he tries turns into pure chaos! And Rimuru has no idea that he himself is the ideal cold pack...
Now that I think about it, 
this is summer vacation, too.
بالتفكير في الأمر، هذه إجازة صيف أيضاً
Wenn ich es mir recht überlege,
erlebe ich auch grade Sommerferien.
Esto son otras vacaciones de verano.
Esto son otras vacaciones de verano.
En y repensant,
on est aussi en vacances d’été.
E, a pensarci adesso, 
per me è come essere ancora in vacanza.
Pensando bem, aqui estou de novo
em umas férias de verão.
Если подумать… это ведь
 тоже летние каникулы.