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!
I hope it's just a rumor, but what if it's true?
آمل أن تكون مجرّد إشاعة، لكن ماذا
لو تبيّن أنّها صحيحة؟
Wäre gut, wenn das nur
ein Gerücht wäre, aber …
Espero que sea un rumor,
pero ¿y si es cierto?
Espero que sea un rumor,
pero ¿y si es cierto?
J’espère que ce n’est qu’une rumeur,
mais si c’était vrai…
Sarebbe bello se fossero solo voci di corridoio, 
ma se invece fosse vero...
Espero que seja só um rumor,
mas, se for verdade...
Хорошо, если это слухи,
 а если он настоящий?..