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!
He's a bit of a simpleton, 
but I kind of envy him.
إنه مغفّل بعض الشيء، لكن أحسده قليلاً
Er ist einfach gestrickt,
aber gut für ihn.
Es demasiado simple, pero lo envidio.
Es demasiado simple, pero lo envidio.
Ou alors, il est juste simplet.
È un sempliciotto,
ma in un certo senso lo invidio.
Ele é um pouco simplório,
mas meio que invejo ele.
Хоть он и дурак, но я всё же
ему немного завидую.