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!
Personally, I couldn't 
wait to become an old man.
شخصيّاً، أنا متحمّس لأصبح عجوزاً
La verdad, quisiera ser viejo pronto.
La verdad, quiero ser viejo ya.
Personalmente,
non vedo l'ora di diventare vecchio.
Pessoalmente, mal posso
esperar para ser um velho.
Знаешь, лично я жду не дождусь старости.