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!
You'd really rather go 
back to being that way?
أتفضّل حقاً العودة إلى ذلك الشكل؟
¿De verdad preferías estar así?
¿De verdad preferías estar así?
Preferisci tornare in quel modo?
Você quer mesmo voltar a ficar daquele jeito?
А ты бы предпочёл остаться стариком?