While taking their usual bath, the boys discuss how much Kyotaro is like an old man. The next day, when they go to school, they find themselves exhausted by climbing up the stairs... and learn that they're all becoming old men!
Chiro, that's a wall.
تشيرو، هذا جدار
Chiro, das ist eine Wand.
Chiro, esa es la pared.
Chiro, esa es la pared.
C’est un mur, Chiro.
Chiro, quello è un muro.
Chiro, isso é uma parede.
Тиро, это стена.