One day, when Shuna and Shion are fighting over Rimuru's squishy slime body as usual, Rimuru comes up with the idea to make a cushion in the shape of his slime form. He travels around Tempest to see if his friends know of any good materials he can use, and he learns that a special type of sand found along a lake shore in the forest is exactly what he's looking for. So he sets out to collect some sand... but a monster is waiting for him by the lake!
"Getting ready" meant 
changing into swimsuits.
المقصود بـ"استعداد" هو ارتداء ملابس السّباحة
Sich fertig machen hieß hier,
Schwimmkram anzuziehen.
Prepararse significa
ponerse trajes de baño.
Prepararse significa ponerse bañadores.
Li ho chiamati preparativi, ma di fatto 
dovevamo solo metterci il costume.
"Se preparar" significa
vestirem seus biquínis.
Готовиться —
 это переодеться в купальники.