What? Asashio-nee, you've been staring at us for a while now, is something bothering you?

And anyway, you're joining the 18th on our operations. Why?

I feel the need to observe your everyday work. As an older sister.

Sorry to keep you waiting~ Ah, Asashio-chan, looking forward to working with you today~

Would you stop getting excited about just joining in with daily practice!?

Ah, Kagerou. Thank you for always looking after my little sisters. This exchange is a typically formal way for a parent to meet a teacher, or a family member to meet a co-worker or boss

Oh, no, no, They're the ones looking after me all the time... A typical response

Hey!! Stop it!! It looks like you're my guardian or something!! Kagerou!! Don't play along with her!

They're the two youngest, so I haven't been able to watch them very much, I'm worried they won't do well...

After this, the "oldest sister practice observation" became popular, I think