my reaction is pretty much like Yamashiro there... What the hell?
I'm sure it has this kind of feeling, yes!Heeey!
Yamashiro!Ehh...Why out of the blue!I'm sure it has this kind of feeling!Yamashiro-neesan!Sisterly?Stop that! That kind of calling-out just doesn't suit!At the very least, do it in a younger-sisterly fashion!