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!
There are lots of things that don't look 
"right" on you until you get older.
هناك أشياء كثيرة لا تليق بك حتّى
تصبح أكبر سنّاً
Wenn man nicht alt ist,
kann man viele Dinge nie genießen.
Hay cosas que no te parecen bien
hasta que no eres viejo.
Hay cosas que no te parecen bien
hasta que no eres viejo.
Il y a plein de choses
qui passent mieux quand on vieillit.
Invecchiando, ci sono molte cose di sé
che non sembrano "giuste".
Há muitas coisas que não parecem
"certas" até que fique mais velho.
Есть множество вещей, которые
позволяются только старикам.