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?!
Do you really think any creature would 
munch on all these spiny shells?
أتصدّق حقاً أنّ هناك مخلوقاً يمضغ
كلّ هذه الأغلفة الشوكيّة؟
Glaubst du ernsthaft, irgendein Tier würde
auf den ganzen stacheligen Schalen rumkauen?
Quel animal pourrait avaler
des châtaignes tout entières ?
Credi davvero che una creatura
si masticherebbe tutti questi ricci?
Acha mesmo que existe uma criatura que
possa comer essas cascas cheias de espinhos?
Ты правда думаешь, что кто-то мог 
сжевать столько колючек?