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!
I guess we just have to 
beat the monster, then.
أظنّنا علينا هزيمة الوحش إذاً
Das heißt dann also, dass wir das Monster
nur noch bezwingen müssen!
Ahora tenemos que vencer al monstruo.
Ahora tenemos que vencer al monstruo.
Il ne nous reste plus
qu’à buter le monstre.
Allora immagino che
dovremo sconfiggere il mostro.
Acho que só temos que derrotar o monstro.
Я думаю, теперь нам осталось
 победить монстра!