As Goma-chan is swimming in the river, a shark's silhouette appears behind him?! The shark turns out to be Dot-chan, a young whale shark that escaped from the local aquarium! Goma-chan and Dot-chan quickly become great friends and have fun swimming in Dot-chan's tank at the aquarium together. But when Ashibe-kun calls out to Goma-chan that it's time to go home, Goma-chan doesn't seem to understand him... What's happened to Goma-chan?
If Goma-chan doesn't understand 
human language anymore,
إن لم يعُد غوما-تشان يفهم لغة
،البشر بعد الآن
Wenn Goma-chan die menschliche
Sprache nicht mehr versteht,
Si Goma-chan ya no entiende a los humanos,
Si Goma-chan
ya no entiende a los humanos,
Se Goma-chan non capisce più il linguaggio umano,
Se a Goma-chan deixou de
entender as palavras das pessoas,
Если Гома больше не понимает язык людей,