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!
This isn't good!
!هذا سيّئ
Das ist schlecht!
¡Esto es malo!
¡Esto es malo!
Je le sens mal…
Non va bene!
Isso não é bom!
Плохо дело!