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've been around him so long,
 I guess I'm kind of numb to it.
قضيتُ وقتاً طويلاً معه، أظنني فقدتُ
الإحساس بذلك
Ich hab mich dran gewöhnt,
Te conozco hace tanto
que creo que ya me acostumbré.
Te conozco hace tanto
que creo que ya me acostumbré.
Sono stato al suo fianco così a lungo
che ormai mi ci sono abituato.
Acho que fico tanto com
ele que já nem percebo.
Я с ним столько времени,
что уже перестал замечать.