Friendly Oba-san Oba-san = aunt, but it's also used as a friendly informal term for older women

It's gotten much cooler today, huh...?

How about we all sleep in the same bed?

So warm...

Heh heh, it's like we're on a school field trip.

This year is almost over with, isn't it...?

How long can we keep doing things like this...?

Eventually we'll all graduate...