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!
Hey! Doesn't the sand we're 
standing on feel super smooth?
ماذا؟ ألا يبدو الرّمل الذي نقِف عليه
أملس للغاية؟
Wow, ist der Sand nicht superweich?!
Oigan, ¿esta arena
no se siente superblanda?
Anda, ¿nos parece suavecita esta arena?
Oh ! Regardez ce sable,
comme il a l’air doux !
Aspettate!
Ei! Não acham que essa areia
parece bem lisinha?
Ух ты! А песочек-то под ногами
гладенький очень!