Uncle Akio takes Gunma-chan, Aoma, and Meemi snowboarding. Gunma-chan feels lonely and finds solace in his imaginary friend. Gunma-chan visits the Haniwa Animation Studio and learns the ins and outs of creating anime.
Yup, people become adults 
without even realizing it.
Eh oui, on devient adulte
sans s’en rendre compte.
Sì, le persone diventano adulte
senza neanche accorgersene.
Isso mesmo. As pessoas viram
adultas sem nem perceber.
Да, люди и не замечают, как взрослеют.