Ashibe-kun wanted to gather chestnuts, so his grandpa bought a mountain for him! Goma-chan has never had chestnuts before, so he's excited, too! Now, let's all go pick up chestnuts together! The gang searches the ground in a grove of chestnut trees, but... what? There are no chestnuts anywhere. Then they find some mysterious footprints... Could the one who ate all the chestnuts be the unidentified creature Cheskenstein?!
It refers to things like 
the tsuchinoko and Nessie.
تشير إلى أشياء مثل التسوتشينوكو ونيسّي
Damit sind Wesen der Tsuchinoko
und Nessie gemeint.
Son animales como el tsuchinoko o Nessie.
Son animales
como el tsuchinoko o Nessie.
Le légendaire monstre
du Loch Ness.
Si chiamano così le cose come lo tsuchinoko e Nessie.
Se refere a coisas como
a tsuchinoko e a Nessie.
Цутиноко и Несси, например.