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!
Last night, I might have wished that 
instead of going to school every day,
في اللّيلة الماضية، لعلّي تمنّيتُ بدلاً من الذهاب
،إلى المدرسة كلّ يوم
Anoche, pude haber deseado
pasármela flojeando a diario
Anoche, pude haber deseado
pasarme el día vagueando
La scorsa notte potrei aver desiderato di
avere la testa tra le nuvole come un anziano,
Ontem à noite, eu posso ter desejado que 
ao invés de vir para a escola todos os dias,
Этой ночью я мечтал о том,
чтобы как старик дремать целыми днями,